Five years old is not too young to have a job, a chore, or a responsibility (call it what you like). If they are old enough to walk, they are old enough to pick up their own toys and participate in their “hygiene”. By the time they go to school, they should have more responsibility -- make their own bed, set the table for meals, take dishes to the counter or sink (however it works in your house), dust, sweep, etc. Chores that apply to ‘their own space’ are not ones they should be paid for in an allowance. Those should be part of teaching them to be responsible for themselves. A few chores should be reserved for contributing to being part of the family. Chores for an ‘allowance’ are additional.