Sure they can. Early North American settlers lived in tiny, one room log cabins, and raised those 3+ children in them just fine. Homes that small are not even allowed in most jurisdictions these days. The middle class have way more space to work with these days.
Let's face it, the reality is that middle class people just don't want children. It's not 'cool' to have children. Society says you need a career instead, and so that's what most people buy into and turn their attention towards.
Sure they can. Early North American settlers lived in tiny, one room log cabins, and raised those 3+ children in them just fine. Homes that small are not even allowed in most jurisdictions these days. The middle class have way more space to work with these days.
Let's face it, the reality is that middle class people just don't want children. It's not 'cool' to have children. Society says you need a career instead, and so that's what most people buy into and turn their attention towards.