I have wrinkles, I have grey hair, I have back problems, high cholesterol, high blood pressure, I can't remember anything, the world seems confusing and complicated to me now and I wish things were simpler (which is why I like Lemmy). I definitely don't get kids today or their music.
How am I so old?
You purposefully let yourself slip. I'm 41. I listen to new music, I understand kid's clothing styles (I was not that different in the 90s), I've kept up with modern technology, I kept moving (due to my labor intensive job), and I've eaten well. That's all on you bro. Old does not have to mean outdated.
Edit: reminds me of my Dad who pretty much stopped listening to any music produced after 1982 and has his garage radio permanently set to classic rock. I made a promise to myself a long time ago that I will never stagnate like that.
I'm same age as OP and love Skrillex. Pretty in the loop with tech. Use they/them when asked without complaint. Am out of shape though, need to work on that part. Still miss my Commodore VIC20 and IBM XT though.
Skrillex is so 2010.