My eldest pays £200, my youngest £100 as she's just started a job and isn't full time hours yet.
I found it more cost effective to cook and do the laundry as a family I don’t understand this everyone do their own washing my machine would only ever have half loads 2 or 3 times a day !?
Both mine do their own washing, probably once or twice a week, and it's always a full load, plus their towels, bed linen etc. No half loads here ever!
They look after their own rooms, they help with some minimal housework - vacuuming, dusting, loading and emptying the dishwasher, doing the bins, cutting the grass etc. I cook most evenings, unless I'm out, and they either have what we are having if they like it, or if not, they make an omlette, or buy and cook their own food.
Both are saving up to grand a month, and the eldest is way better off than I am! I'm pleased though, because they are building up good nest-eggs for when they want to move out.