[cgeier]

IMO retirement isn't a long holiday but it's for people who cannot contribute to society anymore.

That point might be reached earlier for some people, e.g. those who have a hard physical job, than others and a general retirement age is an approximation for when that point is reached for the general population.

[xedrac]

Retirement doesn't mean I won't contribute to society anymore. It'll mean that I can contribute in ways that I am most interested in, without having to make money doing it.