I am very understanding your feeling. I have been children Sunday school teacher over 12 years and now I have a son who is the same age as your small son and with development problem. I know the teacher will be different every week but you can talk to those who is responsible for the Children Sunday School and see whether they can find out a solution or not. Sometimes, the kids like 3 or 4 years old would like to play fighting especailly boys. If want know more about the children group of your son, how about stay at Children Sunday School for a few months or being a teacher / helper in the Children Sunday School.
If you don't let your sons go Sundy School, I am afraid you will not attend the Church later as you have to take care your children.
Let's pray for those teachers have wisdom from our LORD to teach our chilren. Amen.
Is sunday school only for kids over 5? Where can I let my girl to go as she is now 4 and if she doesn't attend the class, I can't go to the church too, pls advise.
Our church(Yuen Long) has a Sunday School for those children who study kindergarden.
I think lots of churches have the Sunday School for children in different ages. I know some of them even provide the services for those under three year-old. They will have some sisters to help parents to take care their babies, so that they can warship God during the service.
I will advise you to post new title in BK and tell us where you want to have Sunday School. I believe you can lots of information about Children Sunday School from brothers and sisters