Babysitting charges for 19 yr old teen

[Enjoyingtheattention]

Can anyone advise me on how much my daughter should charge for babysitting? We are based in London, she is 19 and has been approached to babysit over her summer break from University.

Many tanaka in advance.

I was paying 7 quid an hour 10 years ago in London. I don't know about know though.

Depends what's involved. If its daytime, or evening but with older kids who don't go to bed until later, so that she'll have to entertain them and actually look after them, then more than an evening job with small kids who go to sleep early and she just has to sit on a sofa and watch TV/ Netflix/read.
Will she be effectively doing a nanny' s job?

Thanks ladies for your swift replies.
DelphiniumBlue, one family have two kids 6 and 8 yrs, the other has a 3 yr old. She hasn't been told whether it's daytime or evenings yet. (Gets back from Uni next week when she'll meet them to discss in full).

How much would you suggest she charges?