Some white-collar professionals enjoy continuing their work past retirement age. It can be stimulating, high-leverage, and I have often seen them contributing at key moments without spending much time at the office. The accumulated wisdom and political capital of many decades at the wheel makes a difference. I've also seen blue-collar workers keep at it past retirement age because of their finances or some other compulsion despite arthritis, weakness, bad sight etc and rue every moment. Let's make sure we understand that not every craft is heaven and not every corporation is a hellscape.

I worked for others in a corporate environment and it was often a joy, but the problem is you don't always get that lucky and even if you do, the environment can change around you from year to year and a perfect job can turn into hell. And corporate engineering jobs have become so filled with stupid bullshit that the career I had and thrived in may not even be possible anymore.

I'm not set up to work for myself, my ideal is for others to worry about the business, and give me projects I can work on with freedom.

If you're making money from that craft it means you have customers. And bad customers are their own kind of hell.

But in most crafts they are easier to avoid or mitigate.