Humans need a constant supply of resources and shelter to survive. There is no "system" which avoids this inconvenient fact. In the absence of any "system" at all, you would still need to constantly work for survival - and in fact you'd just die as soon as you were no longer able to do so due to illness or injury much less old age.
In other words if there were no "system" there would be no such concept as "retirement" in the first place.
We all wish that we could spend our best years doing whatever we want. That doesn't mathematically work out, though. European social safety nets are pretty damn generous all things considered. Plenty of vacation days, especially compared to the US. It's not like it's impossible to use those well during your "best years".
In other words if there were no "system" there would be no such concept as "retirement" in the first place.
We all wish that we could spend our best years doing whatever we want. That doesn't mathematically work out, though. European social safety nets are pretty damn generous all things considered. Plenty of vacation days, especially compared to the US. It's not like it's impossible to use those well during your "best years".