That’s probably the hardest question - just because design is pretty broad. When I started out, I thought I had to learn Photoshop, and I think design is a lot more specific. I think we’re moving towards a divergence from titles, because the same titles mean different things at different companies. For people trying to break into it, don’t get stuck on titles. Try to become a value creator. There are a lot of ways to create value.
For a UX practitioner, you need to focus on user research and product strategy. There aren’t new form field designs coming out, so I think in the future, if you want to focus on user interface, typography, and color, there will be a place for that, but you’ll have to be in the top 5%, because all that stuff has been designed already.
You can create great products with toolkits assembled by other designers. Try to figure out how you can play a more strategic role on the team, and make sure you work with really experienced people.