not sure what all, ya'll are projecting on to this question but to take it as face value i'll give you my answer.
my 10 son, still hasn't figured out combing his hair, but he is easy going and will do what I ask when I ask. He is able to start a load of laundry, but again generally I do it, he will fold it ( although after 3 yrs you would think he would know that rolling isn't the same as folding) and take his laundry up to his room. I set a bad example and generally set the shirts and pants on his dresser because the drawers are hard to pull out, I hate his dresser but it was an heirloom from dh's parents. so now he does that too.
he empties the dishwasher, can get his own breakfast, can pack his own lunch but again I generally enjoy doing it for him so he isn't soley responsible for it. We don't make our beds often, and he hates helping me change the sheets but I still make him. DH has recently started making him scoop a weeks worth of dog $h*t out of the back yard and i'm not sure i'm ok with that, that to me required a bit more maturity than my 10 has. oh and he always feeds the dog. I added wrapping presents for family to their list of skills, still no perfected but its a learning process. we've also started with the vacumming but again I don't have a routine for that so I do it at odd times and it's usually when they aren't around.
Dd has been shown the same things, and is as capable but drives me completely insane, she'll complain and fight with him over everything and doesn't want to do anything that is a chore, but then will ask to cook a five course dinner or to repaint the walls, things that are actually beyond her, She is just a pill and we haven't figured out how to get along, as she wants nothing to do with pleasing anyone. I will continue to parent her and shape her into a productive adult, but this particular week, I'm just fed up with all of it.
I think to some extent you did get lucky but I think you also where thoughtful in your parenting, and are probably a consistent person.
I always think we have to be careful of the boundary between self reliance teaching age appropriate skills and mom is busy on the computer or out having drinks with friends and can't be bothered so she is going to pretend that she is teaching you skills instead of abandoning you which is what it really is.
I'm sure my kiddos could put themselves to bed, but just like having dinner together and checking over homework, those are things that connect us and show my kids that I love them. Those things are my job.