เลิกขัดแย้งเรื่องเลือกโรงเรียน — เปรียบเทียบ school + commute + ในกฎหมายไทย + เสียงแม่สามี ใน 1 ชั่วโมง

Source signals

• SIG-20260426-sea-mainland-family-logistics-mixed-marriage-school-choice: "We are settling in Thailand long-term / 50-75% less / first-time expat families" — RECURRING with 6+ adjacent sources
• SIG-20260426-sea-mainland-family-logistics-bilingual-homework-help (overlap): same cohort hits daily homework friction post-decision

What we ship

**Core features (MVP)**

• Database 200+ schools across Bangkok / Chiang Mai / Phuket with 12 parameters: tuition tier (4 brackets), curriculum (Thai / Bilingual / British / American / IB / Singapore), EAL/SEN support, Thai-language balance %, commute zone, Buddhist or international ethos
• Stakeholder voting: each of 4 (foreign parent / Thai parent / mother-in-law / child) sets weights across 5 dimensions (cost, commute, language, future mobility, tradition); final ranked list — Claude-explained tradeoff
• Commute simulator: "if we move to On Nut → school A 25 min, school B 18 min, mother-in-law in Khlong Toei 35 min" via Google Maps API
• Hybrid school path planner: "start bilingual until Pratom-3, switch to international at Mor-1" — visualizes TH education path
• In-law mode: Thai mother-in-law gets her own Thai-language view emphasizing "loss of Thainess" tradeoffs (important cultural-specific layer)

**Primary user flow**

1. Bilingual TH/EN landing, hero "สิ้นสุดการขัดแย้งเลือกโรงเรียน / Stop arguing about which school"

2. Family adds members (foreign dad / Thai mom / mother-in-law) — each gets personal LINE/email login

3. Each stakeholder takes a 5-min survey (weights for cost/commute/curriculum/language/mobility); the system hides their answers from others until the end

4. Family meeting view: AI-synthesized top 5 schools with rationale in both languages; "this is what mother-in-law prioritized; this is what dad did"

5. Pricing: 999 THB one-time per family (full report + 12-month update access if school is added); 299 THB ad-hoc per region; or 1,499 THB Premium with a 1-hour Zoom session with consultancy partner

**What it looks like**

• **Landing**: hero "6 เดือน 14 รร และยังไม่ตัดสินใจ?" + stakeholder dashboard screenshot in TH/EN; CTA "ลองดูตัวอย่างรายงานฟรี"
• **Main screen (family)**: 4 stakeholder avatars with survey-progress checkmarks; central Bangkok map with schools as dots; tap school → detail card
• **Main screen (mother-in-law, large-text TH)**: "อยากให้หลานเรียน อะไรสำคัญกว่า?" — 5 simple comparisons (Thainess vs cost vs commute)
• **Output**: PDF report "Top 5 schools for Pao Family" with tradeoff map, commute-times-from-3-locations, AI-explained "why mother-in-law prefers X and you prefer Y — common middle ground is school C"

**MVP build plan (11 days)**

• Day 1-2: backend User+Family+Stakeholder+School+ScoreWeight+Result; school directory seed (200+ schools manually curated)
• Day 3-4: stakeholder onboarding + voting UI bilingual TH/EN
• Day 5-7: Google Maps Distance Matrix integration, commute simulator, Thai education path planner
• Day 8-9: Claude reasoning prompts (TH + EN), PDF report generator
• Day 10-11: PromptPay/LINE Pay one-time payment, TH+EN landing, deploy, soft launch in BKK Expat Mums + Thaivisa expat-parenting forums

Reasoning

SIG-mixed-marriage-school-choice is RECURRING because 6+ sources (ExpatSchoolGuide, La Case de Babette, Acadasia, Thaiger, Care Nest, Thaivisa) each touch one face of the same problem: mixed families spend 3-6 months comparing schools and **the process is the pain**, not lack of information. Current sites (acadasia.com, expatschoolguide) are static comparison tables. Nothing handles (a) multi-stakeholder voting (especially the Thai mother-in-law), (b) commute simulation by neighborhood, (c) language-balance trade-offs.

The bilingual homework helper SIG supports the same cohort — these families face daily homework cross-language friction once enrolled. This product is the entry point; cross-sell to bilingual homework helpers is roadmap.

Stack-fit: 11 days, 200+ schools — manual curation is feasible (free sources + scraping); Google Maps API is standard. One-time monetization removes churn risk; high ARPU (999-1499 THB) compensates.

Quick competitive read

• **acadasia.com / expatschoolguide.com** — static comparison sites, no stakeholder dynamics, no commute sim.
• **ISAT (International Schools Association of Thailand)** — directory + events, not a tool.
• **Educatius / Thai Visa expat parenting** — forum advice, unstructured.
• **EduOpinions / SchoolAdvisor** — review sites only.
• **WhichSchoolAdvisor (Dubai/Singapore)** — closest analog but Singapore-only content.
• **White space**: 4-stakeholder voting + commute simulator + Thai mother-in-law language layer. Competitive pressure 7/10.

Initial pricing hypothesis

999 THB one-time per family (full report + 12-mo update access) — the strong wedge product; 299 THB one-time per region (if only one of BKK / Chiang Mai / Phuket); 1,499 THB Premium with a 1-hour Zoom call from an education consultant partner (revenue split). Anchor: international school costs 300K-1M THB/yr — 999 THB is 0.1-0.3% of that decision and pays back in a week of saved stress.

Distribution hypothesis

1. Facebook BKK Expat Mums (35K), Chiang Mai International Mums (8K), Phuket International Family (5K) — soft launch with case-study posts

2. Thaivisa expat-parenting forum — "build-in-public" with real (anonymized) examples

3. TH Twitter EN — short EN reels "mixed family school choice in 1 hour vs 6 months"

4. Partnership with relocation consultancies (Asia Visa, Settle In Bangkok) — 30% revenue share per sale

5. SEO targeted: "international school bangkok comparison", "bilingual school chiang mai", "mother-in-law school thailand"