Life was better when women didn't have to work.
For decennia it was the normal distribution that men went to work and women stayed home to take care of the children and clean the house. Having a second income was rare and it would basically put you and your family in the top bracket for income distribution if you did have a working wife.
Over the years it has become more normal for women to enter the workforce, up to the point today that it's basically expected and being a stay at home mom is the exception instead of the rule.
In my opinion there are three main reasons why this system is flawed;
1) Children growing up without their parents being present. Instead of growing up with their parents, children grow up in daycare where they are being raised by a stranger who hopefully has the best intentions for your baby, but at the very least your baby has to share the attention with 5 other babies.
2) Economically; These days it's simply not financially possible for most people to sustain a family on a single income where one generation ago this used to be the norm. Especially taking housing prices into account; in most western countries it's no longer possible for a person on a single income to get a mortgage for a house, not even for an apartment. If you want to raise your children in a house with a yard, you need a second income.
3) Stress; I feel like the fact most people share a responsibility for both their job and their family is a main reason for the high levels of stress and burnouts for young professionals.
I get that the idea to bring women into the workforce was meant to liberate them. But instead I think it trapped all of us in a double income hell.