Computer scientists circa 1980 were driven absolutely crazy by BASIC becoming the dominant teaching language in primary schools; with alternatives like UCSD Pascal, however, you are better off writing assembly.
Everything else is blasphemy.
After that, Pascal = Delphi (for quite a while).
The fact that both are commercial, closed-source (and, in case of Delphi, quite pricey) packages is pretty much the sole reason Pascal lost out in popularity to languages that mere mortals could use at home without having to resort to piracy.
It took Embarcadero over a decade to realize that offering a free "Community Edition" of the IDE is a must to stay relevant. It was too late by then.
(Possibly Jetbrains is an exception, though my take is their attempts to introduce new languages like Katlin and radical frameworks like MPS haven’t been as impactful as getting the bugs and slowness out of Eclipse)