The gals here must be making serious money if they can afford to pay 14 year old girls $10 an hour. I'm 27 years old and I'm not making much more then that. I'm an Emergency Veterinary Tech and I work very hard for every dollar I earn. And I was once a babysitter and I know the work involved is not worth $10 an hour. Yes, they are watching the most important people in our lives...but they are still kids themselves. How do you teach a kid the value of a dollar when they are making more then a 16 year old that works at Target, or a 22 year old that works at Barnes & Noble? Paying them $10 an hour is not going to guarantee a better babysitter then if you paid them $6 an hour. And remember, that is tax-free pay. I doubt very much that people here are having them fill out a W2 and pay taxes out of that (even though they are making more then enough money that by law, they should be paying taxes).
Now in the case of a trained and skilled Nanny that is teaching your children things and taking them to the zoo and the children's museum, I can understand paying that much. But not a babysitter. I will stay home with my son and husband rather then pay that kind of money to a child. And not because of the money, but because the idea of paying a child that much money is doing a disservice to them as well as to the mothers out there that need babysitters, but can't afford to pay them more then they themselves are making. This is an unfair inflation started by people that make large sums of money and can afford to make bids on babysitters. Consider where that puts people in less advantaged situations?
So with that said, if they are not college age and CPR trained, and come with at least three glowing references, etc...the most I would pay is $6 an hour, plus $1-$2 more for each additional child (and I would pay more for infants). At that rate, they are making the median amount that 16 to 18 year olds are making. For $10 an hour, I expect to have a person that could almost pass as a governess (a full time job at $10 an hour equals out to about 20k a year). A high school age kid doesn't have a mortgage/rent, utility bill, credit card debt...this is pure spending cash and a ton of it.
Anyway, this is just my opinion. I only charged $20 a night (eight hours worth of babysitting) to watch three young boys and I still felt guilty for taking so much money from someone that was struggling to get by. And even though I was making less then other babysitters, it didn't change the quality of my work.