There is no such thing as Responsibly if there is no disclosure.

I think shared ownership goes against human nature

I think the vast majority of things are shared. Air, water, soil… roads, schools… your education… the bathrooms at the supermarket… the murals/sculptures that make your town look less like a shithole…

It’s perfectly in line with human nature, actually, to share things. People who amass hoards of wealth and fight for power and control… those are the weirdos.