[poppysan]

If a person is over 18 in the US they are an adult, and to base this on what actions they choose to take is the wrong metric. For instance, My wife and I work a lot and choose not to handle the major cleaning tasks, such as mopping, dusting, vacuuming, and the like ourselves. We outsource it to a cleaning company who does a weekly pass on these things. The house stays in pretty good shape in between, and the only time I have to clean much is if the kids are being rambunctious.

True, if I couldn't afford it I would have to do more myself or burden my wife to do it, but it doesn't make me less of an adult.

[maxerickson]

It doesn't take a particularly generous reading to say that hiring someone is cleaning up after yourself. That is (for the purposes of the gp comment), you make sure your house isn't a mess, the details of how aren't interesting.