When I toilet train daycare child first business day after 2nd birthday, I require parent be on board for consistency. My whole method base on it being less inconvenient for child to go to washroom, than it is to have accident. I require real underwear so it feel different and when accident happen, the child have to get fresh clothes, I help them clean up (if 2 years old) and the child has to put fresh clothes on.
First couple days about lot of praise and congratulation to build confidence and no negativity but they do have to get own clothes from bag, take off wet clothes, put in plastic bag etc.
Since this one is much older, he should be able clean himself.
Need parent on board though. If they going keep baby him then it not going work. Sit down with parent, go over method and make sure they will be doing same at home. If not, it going be long road.
Wow awesome does that usually work with the kids? how long on average does it take for you to train them?