In 2000, you were 7 years old and had no clue what anyone was paying for rent, much less how cool was open mic night at the local. Your parents could afford to do things and shielded you from what they cost. Or sitcom families could do things and you're remembering Will & Grace.
I mean, yes: shit's expensive today, but heterosexual people had roommates in 2000, in 1990, 1980, even in 1960. In 1980, it was scandalous to have a roommate of the opposite gender.