Technically I did my first programming in the 80s as a kid. I went to college in the 1990s. I definitely learned Perl and used it.

However I would say an awful lot of the professionals I was around already thought Perl had a bad smell even in the 1990s. It was definitely looked down up on in academia by then. Maybe not in an IT department or Math department but in the CS department it was. It was used by IT guys, and QA guys, and somebody gluing some tools together. An awful lot of people thought it was unacceptable for it to be in serious production code or anything that had to be long term maintainable or be worked on by a team of people larger than size = 1. Your perception of it definitely came from where you were at the time and how you encountered it. If you were on a team producing software for sale that involved a bunch of people and you had version control and QA and everything Perl was already not your thing.