If I have kids (and that's a BIG if) I'll teach them in a "fun" way from an early age so that it's not suddenly "time for chores" one day. I don't like the idea of pocket money in return for chores, but I would make it dependent on doing some chores - not like a set list for set amounts of money, but if they've contributed, they can have £15 for the cinema and a burger.
I'm really grateful to my parents that they taught me to contribute, even if that does now extend to them nagging about keeping my room tidy and doing things *right now* when I'm paying rent as well! I would hate to have MY children grow up and leave home having never made a cake, cooked a roast dinner, cleaned a bath, shower, loo etc. I wouldn't expect them to clean shared loos every week or anything like that, but they should know how to keep their own space tidy. Equally, if I ever childsit for my siblings (more likely than having my own bratlings!!) I'll expect them to help out...or at least to offer to. They're not guests unless I invite them over, so even if their mums wanted them to come and they didn't have a say, they'll help to cook or clean or lay the table, and not complain about my cooking!