[fiatjaf]

So in the past when there were less people per square miles on Earth there was less space and people had to share beds?

[eeZah7Ux]

Heated rooms were for kings and aristocrats, everybody else had to share smaller rooms to keep the heat if they lived in colder climates.

[brewdad]

Homes have gotten much larger as humans have become more wealthy on average. Compare the 1500 sq ft 1950s suburban home to today's 3000+ sq ft McMansions.

[eeZah7Ux]

That really depends on the country. Many farmer houses (in warm areas) in Europe are much bigger that the average city house.