What about appearance? I'm a 37 year old self-taught backend dev (a fallen physicist) and I seem to be able to talk myself into a job with relative ease, both

What about appearance? I'm a 37 year old self-taught backend dev (a fallen physicist) and I seem to be able to talk myself into a job with relative ease, both big and small companies. I worry sometimes that a significant factor in this is that I still look and dress relatively young. I think this body has about 5 more years before it starts to look unambiguously like a grownup.