I work at a small computer shop and I love putting all those RGB lights in for people. Especially when I can do a full aRGB setup with a SignalRGB layout so patterns can move across the whole machine. For my own computer the only lights are the tiny power and hard drive activity lights, and I wouldn't have it any other way. RGB lights belong only in other people's computers.
I'm also oldish. But man, I freaking love lights. Of all kinds. I just love making shit out of lights or doing weird things. LEDs and neopixels are amazing. I have permanently installed lights on the house, and entire (small) room in the house dedicated for a honelab with RGB everywhere. It's cool as shit (to me).
But not on my work systems. That would be really annoying. Soft lights and elegant design for me.
I'm not even that old, born in 2000, but I have never enjoyed the rgb bullshit on computers. I even specifially got my keyboard without backlight so I could have a wirelles one with decent battery life