My children are following the way I dealt with this issue, the little ones are 4/8/9
they get basic pocket money each week, their parents give them £2 each I give them another £2. They do basic chores, set table / clear table / help dishes / tidy their rooms for cleaning every Saturday, put their washing away (all sort age appropriate helped as needed).
they come to me 3 days a week after school, and do the same chores here which is why I give them £2. Note I say give not pay.
they all have to option to earn more if they want, each job is discussed and payment agreed, ie yesterday 9yr old helped me sort out the airing cupboard and put away the extra bedding from when I had visitors, the job took about 1/2 hour (we kept getting distracted) and she was paid 50p
i want to point out. They are asked todo extra chores without payment sometimes, ie help water the garden, if they ask how much they will get, the answer is they do it because we need help and they want to help, not everything earns money. I think if the chore is fun then they don’t get paid, also if it’s clearing away something they enjoyed ie sorting out the paddling pool, they don’t get paid that’s just life.
basically, each job is discussed and payment discussed, if there’s no payment they don’t have to do them job, but they are expected to help clear up after themselves.