Why are classic 4 door sedans "disliked"?

Two doors are performance cars.
Four doors are taxicabs, copcars, and grandpa's car. I can remember five of both my grandpas' cars. ALL were fourdoors.
The only foordoors I own are my diesel pickup, and a 1933 Imperial sedan (with a pair of suicide doors in the back. Six feet of rear seat legroom.)