One of my cars, the 71 Cutlass, sits idle for long periods (months). I don't fuss much with it, just start it up normally when I get around to it.
Last year I rebuilt the engine because of serious oil pan leakage. Upon inspection, I found the bearings never suffered from these startups after sitting idle. They were barely worn through the original tin coating.
95 E320 Cabriolet, 131K