Ignore them. I’ve played around with this stuff so I have some idea of what it’s all about, but only minimally. I haven’t used it for work at all. Despite this, I remain gainfully employed, and I’m convinced that I’m still going to be fielding offers at the age of 90 because pretty much none of the programmers diving into this stuff will have any idea how a computer actually works. You can keep your toes in the water without much commitment.