I have a kickstand on my old MTB, which doubles as a winter bike and trailer hauler. I've found the kickstand makes it easier to unload the trailer when I get home (vs. propping the bike against a fence).

Other bikes...nope. My other transpo bikes are only stopped outside when there's something to lock to, and at home, they live on the porch or in the basement (I've commandeered portions of both areas for bikes). My road bike doesn't have one either - no need, and I'm being just a bit of a weight weenie with that one.