Our bodys evolved to survive under harsh conditions until our offsprings are old enough to carry on (30 - 40 years) everything on top is bonus.

Evolution and Biology have no agency. There is no moral, no right kind of living. If you procreate you fulfilled your biological "destiny". You can do that under eating a burger on a plane while reading on a screen. Evolution doesn't mind. Our bodys don't mind. Warrenty runs out in your thirties. Good thing we have brains that allow us to prolong our life's and increase our well-being.