Young adult DC - how much rent?

[Inesyoucantbelieveawordshesays]

My 18 y.o DD has decided that she will take a year out post A levels, following a tough 2 years in sixth form.

I am 100% on board with this decision and agree it's the right choice. She has a p/t job on £10 per hour and it's highly likely she can increase her hours next year.

We have agreed thar, as a working adult, she will make a financial contribution at home. I know this is a divisive subject and my post really isn't about the rights and wrongs of this (she has a tendency towards being a tiny bit of a princess and I think it's essential she develops a concept of how boring things in the real world cost money. I've decided - although she doesn't know this - that I will save everything she pays and ultimately transfer it into her home-buyer ISA so it comes back to her anyway.)

I just wanted a quick survey - she's likely to earn about £200/week. What do you think is a reasonable sum for her to contribute?

@Blossom64265

30% of her income on rent, so 60. She really should pay the actual cost for food and toiletries, but maybe simplify that at 25 a week. Then she covers the rest of her expenses like paying for her own cell phone, buying her own clothes. Leaving school shouldn’t find her suddenly flush with cash and no responsibilities. It will give her a completely skewed idea of budgeting.

Yes, precisely! This is exactly my rationale. Thank you all for your constructive and helpful comments.

£80 to £100 per month.

because taking "keep" off your working young adult teaches them that nothing in life is free and everyone is expected to contribute.

Its a shitty lesson. Prepare to hand over your pension when you're older and need help with things.
As for budgeting/saving - kids need those lessons at a much younger age than to start at 18.

@Nelliephant1

Absolutely none!!! When did your child become your tenant, it's her home, why on earth would you want her pay rent for the house she's lived in all of her life!

OK.... So, say she is still with you when she is 50, and her 2 brothers too, and you are collecting your state pension. It's their home, they've lived there all their lives, of course they should be paying you nothing!

We've always charged them for food and bills but not rent. We worked out out as £120 a month to cover cost of food and increase in bills (assuming they buy their own lunch) DS and DSD were both fine about it. DD used to moan and say it was unreasonable until she got herself a BF who's living independently and paying actual rent and I think she now sees what a good deal she has.

My Ds pays £200 a month but I staggered the expected payments for the first four months, so he could splurge/buy work clothes.

Month 1 - 0
Month 2 - £50
Month 3 - £100
Month 4 - £150
Month 5 + - £200

This works well for our family and I will do the same for my other children. I put the money away, not that he is aware, so he will have a moving out fund.