[intended]

Fun is emotional and emotions are inherently rational. Healthy and productive are subjective judgements on how someone should live their life and have nothing To do with fun.

The fact that someone enjoys work is happy coincidence for them.

There’s many more people doing that exact same job who don’t have fun doing it- the vast majority of humanity does fun things to make their life worth living.

A small percent of humanity enjoys its work; and a far smaller percent both enjoys their work and makes good Money while doing it.

There’s no substantive foundation on which to discuss “fun” while also tacking on “healthy and productive.”

Fun is essentially irrational.