Piggy I have one of those too 😊
Even cheaper now he is studying at home, just eats cereal and toasted sandwiches in the daytime. Not interested in clothes, or going out, doesn’t drink, no interest in learning to drive (even though we live somewhere without much transport).
Does have an expensive Warhammer hobby but doesn’t buy much now, has also developed an interest in tanks so is now keen to visit tank museums in Russia and Germany even though he has no way to fund these trips as yet!
My older DS 21 is the opposite, thinks we are a bank 😳