Personally, I think early education is necessary, and it's a little late to do it at the age of one and a half. Children aged 0-3 will have many sensitive periods. The sensitive period I understand is the golden period of early education. No matter what you think of early education, parents should at least know when, how and what kind of guidance their children should receive. As for whether you can attend early education classes, it varies from person to person. Personally, I don't advise them to go. I toss the children around and learn nothing. Better stay at home.