Not unrealistic. I learned Pascal as part of my computing A Level in ‘98-‘99, then did Ada (a Pascal variant) as part of my computer science degree. I also owned both those albums (still do!).

Some University Comp Sci degrees in the UK focus very much on teaching you the theory, using a salad of good teaching languages like Pascal (probably Python these days), then leave you to learn C/C++/C#, Swift, Rust, Java or whatever by yourself using, the meta knowledge you’ve obtained. I kind of hated it at the time, but it worked – makes you more adaptable.