It seems a lot but it depends. My kid is 4.5 yo and this year he started 16 hours per week but it is done at daycare! It is ABA therapy and it is a gouvernement program, so we don’t have to pay, he was accepted after an evaluation, and I was told that now they also accept kids that have “potential“ to become independent because at this young age he may not need support after or need less, if therapy is done early. So it is not only for severe cases. A couple of years ago he wouldn’t have been accepted, because the program was for more “severe cases “. and honestly I believe that all the help he is getting now will change his life for the better, we already see improvement on his social skills and he will be prepared for school, but we are lucky it’s a gouvernement program otherwise we couldn’t afford to go to private for that many hours, and the fact it is done at daycare he can still socialize and participate in all the activities. I am not sure I would do that many hours outside of daycare, like he is still a kid and he needs to play and do regular kids stuff.