1994 was 30 years ago. They're likely to be in their mid 30s to mid 40s, depending on why they used the computer.
In my school the kids who had trouble reading in their teens had additional lessons on the computer to help their reading, and the rest of us had occasional reading lessons on the computer when we were about ten years younger. This was the 80s and 90s in the UK
Mid 90s is 94 to 96, not most of the decade. Most people don't start reading as soon as they're born, they usually wait a few years ;)
As I already said though I knew a few people who were in their teens in the mid 90s who were using computers to learn to read. They were my age, and are in their mid 40s now.
I can't speak for anywhere else, but in my little corner of Wales, we didn't have computers in junior school (the school we attended until we were 11), and there were no computers in our classrooms in the comprehensive school (11 to 15 or 18, depending on whether you did your A levels). There was a computer class, and a handful of computers in the school library. The kids who were missed by the teachers and who were found to not be able to read were given extra lessons to learn.
I doubt that OP was in a situation like that, but it's not overly unlikely.