He just wants things and obsesses over them - not even necessarily expensive things, but that too. We obviously are trying to teach him to budget and save, but it is disconnected from that - so he will fixate on something he will never have like a quad bike or a castle) and for a week or two that is all he will talk about, starting off asking for it, moving on to being cross he isn't getting it, obsessing about how he could earn enough money to get one, then moving on to "when I am 18 I will get one and you can't stop me." And then it stops, he forgets it, and the next obsession appears. Much worse in lockdown than it was before. And since it has eased and we took him to spend accumulated pocket money from lockdown in a shop he is slightly less bad - eg the last obsession was a type of headphone and it lasted a week rather than two weeks and he spoke about it a lot but not as much as the other things. Anyone else had this and any advice?