Would you enroll activity class that your child like or enroll activity/class that you think it is good for him/her?

It depends -- if it's hobby/leisure based, then I'd let him enrol in a class that interests him because those things are supposed to be fun. These activities include sports, music classes etc. But if it's academic based and I think it's important for his/her enrichment, then obviously I'm going to pick it out. For example, if I observe that my child loves reading, I'd enrol him/her in a creative writing class as they are complementary to one another and can further hone the child's interest in literature and writing.