Respectfully, as a child who grew up without enough money for at least some of my childhood, I think the amount IS important. Surely all loving parents' priority is that their teenager has enough money for a decent, normal teenage social life - at least one nice day out with their mates per week, say - plus enough to spend on hobbies and interests to make them happy, be that books, art materials, Warhammer stuff, gaming, whatever their teen is into.
Stuff like horse riding is a distant dream for many of us, but obviously if you can afford that too, you do it.
I know I am lucky in that my daughter's dad can afford to give her enough to have a modestly enjoyable social life and some interests of her own. I sincerely would never judge anybody who can't afford that, as on my own I couldn't either.
But I DO, I am afraid, judge somebody who has the chance for their daughters to have that, and intentionally scuppers it due to their own hurt feelings.
If my daughter's dad and I couldn't afford to do that for our daughter, but one or both of us had a partner who was willing to, of course we wouldn't dream of objecting. Our priority is that our girl is happy, always.
My daughter's dad's girlfriend's parents buy my daughter lovely gifts for Xmas. Am I shitty about it? No. I am glad - it makes her happy. I don't know the parents from Adam, and I am not a fan of his girlfriend (who was the OW and the reason for our marriage breakdown) but so what?.I'd consider it really selfish to start objecting to my daughter having nice things, just because I don't like the woman who is seeing my ex.
One of the cruellest things about poverty is that it robs children of experiences. If you have the option to alleviate that for your kids, you grab it with both hands.