Mine are almost 13 and 10.
They get what they earn, basically.
If they do the chores asked of them, they get the full amount of £15 per month each. They can get more if they do more. They get less if they don’t do them.
Core chores: loading/unloading the dishwasher, keeping their bedrooms tidy, hanging up/putting away their clothes. Optional chores: hoovering, dusting, whatever else I can come up with off the top of my head.
However - none are into make up or hair stuff or fancy clothes (yet... thank fuck!), they mostly spend it on scrunchies (we have an unbelievable amount of them), and other little bits and bobs.
Eldest has a second hand iPhone 6 that I top up with £10 a month, middle child will get the same when she starts secondary.
Also, with the pandemic to consider - eldest isn’t going out and about with friends as she probably would have started doing (we live close to a small city centre), hence the “low” amount.