Global Preschool Market Size, Share & Demand Report By Product Type (Public Preschools, Private Preschools, NGO/Community-Based Preschools), By Curriculum Type (Montessori-Based Programs, Play-Based Learning, Structured Academic Programs, Hybrid Models), By Distribution Channel (Physical Classroom, Hybrid Learning, Online Programs, Franchise Networks), By End-User (Households, Employer-Sponsored, Government-Supported), By Age Group (Pre-Nursery, Nursery, LKG, UKG) By Region & Segment Forecasts, 2026–2031