Even kids as young as two can help around the house. If you're not sure what kinds of chores to assign your little (or big) kids, this printable chore chart offers age-appropriate suggestions.
Depending on your child, some of these may be very optimistic. (I'm not sure it's wise to give toddlers the utensils and dishware to set on the table.) But otherwise the chart can be a starting point for discussing with your family how to pitch in.
Here's the full chore list from The Modest Mom Blog: