I am going to start using a neighbor to help with some babysitting. She is about 12 or 13. I haven't asked her about a rate yet but was curious what other sitters this age get.
Back when I was a teenager (early 2000's) I would typically charge minimum wage for a family of 1-2 kids, and add on another dollar or two per hour for families with more than two kids. If she's just watching the kids for a couple of hours, playing with them, changing diapers, and feeding them bottles or snacks, I would think minimum wage is fair for a babysitter that age.
Re: price for teenage babysitter
Married DH 7/30/11
CSC arrived 5/7/12
CHC arrived 6/2/14