Hair color changes with age. My mother in law and wife were both blond when they were kids, but their hair slowly turned browner with age. They both highlight their hair to split the difference.
We have two fairly young kids. Their hair is pretty light blond on the top layers, but their bottom layers are quite a bit darker. I suspect the biggest contributing factor beyond genetics is sunlight. Both of them spend a pretty good amount of time outdoors when the weather permits.
IMO there’s little need to buy new in the computer world unless you want to do something silly like have a snapdragon x laptop or have the disposable funds to go the gaming rig route.
My desktop is a retired business workstation, a HP Z420. I bought it for $250, installed a smaller SSD ($100 new) for the OS + apps, upgeaded to the “best” Xenon that fit the socket ($150 used), upgraded to 64 GB RAM ($107 used, yay ECC memory being dirt cheap on the used market), and a 1070TI ($225 used, purchased just before covid).
It’s more than fast enough for my needs still.
This was all about 4-5 years ago, so you could probably do even better with more modern hardware.