Not an issue. I have spent the last 40 years developing a very specific set of skills.
When I was growing up, my parents emphasized to me the importance of education, because I didn't want to be "digging a ditch" when I grew up. To them, that was the lowest of the low.
So if you are sixty years old, and your one skill set is cleaning up after yuppy spawn, and one of them is rude to you so you quit, that says a lot about your bad choices.
Again, I've heard the other side of it. Disinterested teachers who know they can't be fired, or teachers who are burned out and just giving up.
“I have spent the last 40 years developing a very specific set of skills.”
Stealing movie lines? That’s hardly a skill.