Wow..your friend would have turned us in for child labor, I guess....
I think ten is WAY too late to start introducing helping around the house. Our attitude: we are all family, we all have things we can do to contribute to keeping our home nice. My son is five and he has some daily chores, like setting the table, helping with recycling, putting his laundry away, putting groceries away, clearing up his play/art spaces, rinsing the basin after brushing his teeth, and pretty much doing what we ask. When my back is funky, we're a team for loading wash from the washer to the dryer, so I don't have to bend over so much.
He also can earn extra money by doing extras like vacuuming the bathroom or folding all the cloth napkins/kitchen linens. This way, he's got opportunities every week to augment his allowance.
If you think about it, the Montessori philosophy is steeped in care of one's environment and self, and no one bats an eye. The classrooms have child-sized brooms, mops and appropriate cleaning supplies. Teaching children to care for and respect their classrooms and home teaches them to care and respect for themselves. It also implies value and worth, in my opinion-- we care for these things because we, ourselves, are worthy of a clean and orderly, comfortable place to be. Children WANT to be able to make sense of their world, and this is one component of it. Not only do they learn that tidy=comfortable, they also learn that they are *capable* of fixing their mistakes, cleaning up their spills and messes. Good all round!
I worry that for families who don't start when children are younger, that those children will have a false degree of expectation in the world. If mom is running around, picking up after them, it isn't as though they have a Mom (in charge)/Child (learning person, following mom's lead) relationship; its more like they have a Child who is being treated like a little prince or princess. Kids don't need servants, they need parents.
I'd be curious to know if these ideas extend to how your friend disciplines too... are the kids held responsible for obeying known rules, are there reasonable, natural consequences for their actions? I just wonder, because cleaning up IS a natural consequence of making a mess.....
Kim O: don't call them 'chores' (I hate that word, too... remember, it's just a word!), call them tasks instead. "Chore" rhymes with "bore"... hee hee. Tasks are small and simple and they just get done!
Oh, and just for comparison: when I was leading a group of 20-30 month old toddlers, all of the children quickly learned to scrape their plates and stack their dishes in "like" stacks (stack of plates, one of cups, etc) instead of just throwing them into the bin. Even the older preschool teachers wondered 'how did you do this? I wish our class would..." Teach them, and then maintain the expectation. And you know-- the little ones were so proud they could do this simple task!