Six children and all have been different, even the twins were dry at different times. Most were dry with only 1 or 2 accidents a year by four years. Still have one who has accidents as an adult. The earliest was two years ( he has a bladder that can hold a waterfall) but that is a fluke I think. The bed wetter was put on pills around six years, have tried mats that wake him up if liquids are leaked.
I would not worry too much unless it becomes a problem for either you or him. My son and his partner would make a fuss each time their daughter was dry in the morning. They had a star chart that if she got a certain amount of dry nights she was able to get a treat. She was about 4 1/2 when dry . If a problem maybe see a Dr about it.
Published 18th June 2019