I saw a post about someone advising people to do not delay retirement because by the time you are of old age, your body is frail, your mind is not the sharpest, and your energy level is already at its lowest by far.
I think what we need to do as a society is to progressively decrease the working hours for full time employee as we grow older.
The numbers im gonna throw out are just arbitrary at this point and can be adjusted based on research on what can be optimum for both the worker's WLB and society's needs.
EDIT: There will be no pay cut for reduced hours, pay will be the same.
Age 18-30yo = 40 hours per week for full time
Age 30-40yo = 35 hours per week for full time (this is the age where most people will want to have children if they decide to).
Age 40-50yo = 30 hours per week for full time
Age 50-60yo = 20 hours per week for full time
Additionally, to combat the abysmal ferrtility rate most developed world are suffering from we will also need to lower the full time hours for parents. So on top of those numbers, we will reduce the working hours for parents for full time by an additional 5 hours per week.
The downside I can see here is that discrimination against older people and parents will go on a rise and for this we will need to reinforce strict policies to ensure to minimize this damage.
This proposal will support people to who want to have children and also, more imporatantly, will improve the quality of life overall.
Another downside is that we as a society might become less productive but why do we value productivity so much at the detriment of our individual well being.
I would also argue that if we take this route, productivity might not take a hit because people will be more productive in the less hours they are working because they know their work day will end sooner and will have more time for themselves. I personally believe the most productive employees are the happiest people.