Dd1 from about 3, dd2 before she was 2! Dd2 is very stubborn and I have now had to take her shopping to get her clothes because if sh takes objection to something she won't even try it on - ever!
Nai my dd is the same as your dd2. I seriously don't buy her clothes unless she is the and agrees that she will wear it as she is so stubborn when it comes to clothes. She started choosing her own outfit just before she was 2!