Hi, when do you start to switch to using adult shampoo for your child? Which brand? Thank you.

So far, im still using baby shampoo for my 3 year old child. So far, this shampoo suits her fine so i guess i wont change te shampoo till perhaps she is like 5-7 year old. i will see if the current shampoo still suits her by then. i will also make sure that i will rinise well with clean water if jot thr residue on scalp leaving it looking flakey and itchy .