I’ll be 55 in November. I retired from the military in 2013 after 27 years of service. Then I worked for an engineering company for three years and quit. I consider myself retired and don’t see a problem with it.
One main reason people can’t/don’t/won’t retire sooner is they have fallen into the debt slavery system.
The big problem that I see are the results of putting off having kids, since these days, it’s often difficult to get them off the books before they’re 30.