Global Online Coaching Market Size, Share & Demand Report By Service Type (One-to-One Live Coaching, Group Coaching, Hybrid Coaching Programs, Self-Paced Digital Programs, Platform & Assessment Tools), By Application (Corporate L&D, Digital Health & Wellness, Academic/Test-Prep, Career & Life, Sports & Creative Skills Coaching), By Distribution Channel (Enterprise SaaS/B2B, Mobile Apps, Marketplaces, Health & Insurer Partnerships, Telecom Platforms), By End-User (B2B, B2C, B2G) By Age Group (18–30, 31–50, 51–65, 65+) By Region & Segment Forecasts, 2025–2030