db856bc7__Age___Potty_Training_Concepts__2
[0] 3+ [1] Gradually maturing of digestive system eventually leads to decrease of accidents and bedwetting by around age 5 or 6 [3] Peer pressure encourages toilet use. Enjoys completing sticker charts and working to earn rewards [2] 
Improved ability to break focus to go to the toilet and to resist distraction while getting there
Child's Potty Training Development by Age | Potty Training Concepts
2