Am I being selfish??

[Boo Boo]

jeepers in some countries there's 10 kids in a room that size.

[nickle730]

Your friend has her priorities all screwed up! Separate bedrooms are way down the list of importance when raising kids.

[onthefly]

For goodness sake, that's a silly reason not to have a child.

[LionsandBears]

jeepers in some countries there's 10 kids in a room that size.

This.
My great grandma x many had 15 kids. When one kid moved out of home, another one was born. They were raised in a shack in the goldfields, may not have even had a separate bedroom to the living area.

Kids need food, warmth, love, health care & education. If you can provide that, everything else is a bonus.