Do you have to have a reservation for elsa to do kids hair

Essentially everything a kid wants to do will require a reservation

Reservations are required for the bippity boppity... there isn't alot of room to sit in there with so many families and siblings waiting on a family member to get done up. And once you make an apt, you can only arrive within 5 min of that apt time. If it's like 15 to 30 min prior to, they will send you away and ask you to come back at the apt time.

Yes

Reservations strongly recommended for Bippity Boppity Botique

I would suggest calling wdw directly This sounds like something that requires a reservation and prepayment