Christmas jumper for school - you must have known more than a week in advance, can buy for a few £ from a charity shop, or borrow from someone else
I tried to borrow one but no one had one in his size. He's also a fashion conscious teen not a five-year old.
New joggers - do you mean as in jogging bottoms? £20 is not huge for new, but on a tight budget you could get via one of the second hand apps much cheaper, a supermarket a fair bit cheaper (or not buy)
You won't get much cheaper in a supermarket in adult sizes and again, like I said, he's a teen.
New football - seems reasonable, but this should be a rare thing
It is but these are occurrences are always happening!
Reciprocating Christmas gifts for £20 - absolutely not going to happen for people on limited budgets, you make something handmade, food, or a heartfelt card
By the time you cost up the ingredients and pay to post as relative is hundreds of miles away, it wouldn't be much less than £20. I also have a relative who every year sends my DC a £40 voucher...I have no choice but to reciprocate with the same. Sending some home made fudge through the post is not going to go down well
Group trip - kids have to have fewer choices on tight budgets
I'm not going to deny my sn DC who struggles socially a £5 trip with some friends.