I learned Turbo Pascal soon after it came out. I still program in Pascal to this day.
Things that have changed in the mean while:
Windows became a thing, Delphi, Lazarus happened
Networking, the interenet
Strings can now store a gigabyte of text, not just 255 characters
For X in Y is now a thing
Generics
Threading (though I did write my own for use with DOS back in 1987)
The first languages I ever touched would've been flavors of BASIC and FORTH. Definitely haven't touched those since my teens, and probably not since the turn of the millennium.
I studied for and took a different (albeit programming-adjacent) career, picked up Ruby on the side because it was a _delight_ to play with, and then came back to programming with that front and center.
That said, I still try to keep up with C++ a little bit, figuring I'll need to fall back to that for some "close to the hardware" stuff or something performance critical one-of-these-days.
Mostly Python, JS, and C# these days.
Later I got into higher level languages. Where I'm at C jobs are rare.
I'd like to get back to lower level programming (with C or Rust or similar), but I don't see a path to reach there. I'm thinking I should maybe start with contributing to the Linux kernel (which I have done before).
but it taught me if else switch case, basics like that, not bad.
what made me change paths is it is tough to work with php and mysql given the amount of vulnerabilities back then.