It might. I want to be at work as the same time as my team mates. My wife wants to be at work as the same time as hers. We both want to be home at the same time. Now my team mates have to be at work as the same time as my wife's...
That's not even taking vendors or customers into account we might be doing business with. Schooling for children currently primarily happening with all children in the same room doing the same thing at the same time also furthers this. Just these few examples already cover huge parts of society.
I have neither kids, nor did my wife actually have fixed working hours somewhere and yet my job is best done if I work the same hours as all the people who have those constraints. So any one of these can have a huge impact.
