The fact is the situation is going to be different for everyone. For instance, if someone is 46 vs. 23, they probably don't want to go be a roofer. You might say nursing, but if bad smells and blood really bother you, that won't work.

Also, we could say go learn to use this new AI tool now, but two weeks from now something could render that other tool obsolete. It's really just going to be a matter of keeping your ear to the ground to see what's coming and try to leverage what you can.

In general, anything requiring decent dexterity or empathy could take a bit longer, but robotics aren't as far behind as most believe.