I like them inverted for ships/vehicles but not for first person cameras, if that makes any sense. Surely I'm not alone? I think the difference here is that I

I like them inverted for ships/vehicles but not for first person cameras, if that makes any sense. Surely I'm not alone? I think the difference here is that I think of the vehicles as being parallel to a horizontal plane whereas people are normally standing up so perpendicular. Hitting "up" means different things across those two scenarios.