In my utopia it would be very much usual to be able to pursue a career part time/job-sharing while your children are young (or if you just prefer to be able to

In my utopia it would be very much usual to be able to pursue a career part time/job-sharing while your children are young (or if you just prefer to be able to do other things outside your job). So each parent could work half- or three-quarters- time and thus share child care (with a moderate amount of external help), whilst still both pursuing their careers.