To not want to give DD money to go get clothes?

You seem to be setting out to make this as drama prone as possible.
Why would she need to include underwear shopping - and the money for it - in this trip out with friends?
Just give her less money, deal with returns if you need to, and keep the underwear shopping for a day when she’s with you.

You don’t have to just let her. She clearly can’t be trusted to buy the right things and it’s your money she’s spending. A 15 year old isn’t grown up.

I often get carried away when shopping and make shitty decisions and I'm over 40!

Then you are expecting too much from her and you haven’t learnt either.

She needs a job, her money is worth a lot more than free money.

My daughters used to do this.. then come home and do a show and tell.. luckily they spent wisely ( more or less) both had Saturday jobs.
Primark had opened so more stuff for your money.. clothes/ bags/ shoes,/ jewelry.
Eldest always wanted a CD.
Youngest a book.

I'd hold back £30, and give her the remain £70. I'd give her a time scale the cloths/money needs to last. If she blows it all on a few items, then use the £30 to get her some basics from supermarket/vinted and that's what she's wearing for the next few months. If she surprises you and comes back with a near functional wardrobe, give her the £30, for whatever she wants.

I agree that you've got to start somewhere. Mine could be trusted to go shopping at this age, but they knew that when money was doesn't, that was it (widowed parent). They made bad decisions at the start age 12/13.

Its a right of passage.

I remember getting money to buy school shoes. I bought the cheapest once and spend the change on sweets. When my mum saw them she made me return them.

Me and my friend had to cash her 2s and 1s at the post office. Then the shoe shop wouldn't exchange unless I had an adult signature so we waited outside the shop too scared to approach random adults to sign my receipt. The shop keeper ended up signing it for me.

Man it was long. I still think I owe my friend for that change.

Give her the money and the advice and then leave her to learn and make mistakes.

Give her some money and let her go, she might surprise you and if she doesn't not a big deal really.

I'd not give her loads and also take her shopping for basics.

Mine are a long way off 15, but I think I would give the money in smaller amounts and see what she returns with before handing over a big wad of cash.

From the age of 14, my daughters were given a monthly clothing allowance. I still bought all school related items though. They soon learned how to budget

take her shopping for the basics: underwear, jeans, t shirts and then give her an allowance of whatever amount you deem suitable for extras

my mum used to do this. Buy all the essentials (with my input, so the shape jeans I want and the right colour/style tops) then I’d have about £100 a season (year 2010ish) to spend at Primark and the goth shop and h&M on stuff for my ‘personal style’

I see this as a rite of passage at that age. I have such fond memories of spending all day in our local town clothes shopping with my best friends. And I do remember my (very stylish) mum saying once in Chelsea Girl ‘I don’t understand any of these clothes.’

Good idea get her to write a list of clothes she needs/wants

Give her the money. Its a learning experience. If she buys unsuitable clothes that's it, no more money to replace them

Start small. £20 to buy something specific - ie a top.
If she buys a top and it's sensible (ie correct size etc) then you can up the amount next time.
If she doesn't then next time it's only a tenner.
She needs to show she can do it before you give her £££

I remember having a clothing allowance at 15 and mostly spent it sensibly
I remember saving for Levi's and it's a learning curve for DD
As it's her first time I would give her say £50 with the promise of more next time if she spends it well on her " individual style"
Also tell her to keep receipts as she won't be trying things on
I hope she has a great time

I give DD and DS a clothing allowance each month to a separate account only for clothes, rather than a chunk at a time. They're DD17 and almost DS16 now but done this since they were 15 and 14.
I still buy underwear, school uniform and necessary sportswear (not fashion sportswear).
DD makes a lot of mistakes that get worn once then she sells them on Vinted. DS makes no mistakes.
DD is being more careful now. Seems to work.

I remember around that age being sent to get new school trousers and shoes and came home with tiny skirts, fishnet everything and horrifically impractical platform shoes 😂

All immediately returned by my mother!

Good luck OP!

Like you said, OP you'll give her the money-just make sure she keeps the receipts or has the shop email them to her.

It's a lovely thing to go shopping with your mates at the age of 15 and feel really grown up stopping off at Costa 😊