Back in the day, I was a chickenshit, and uncertain, so I wasn't out. I majored in drama; it wouldn't have been a huge deal. Most of my friends were artistic, creative types. It was a commuter college in a major city, with an active gay community, and 18 was legal to drink. AIDS and herpes were unknown, it was the end of the Sexual Revolution, when promiscuity was a virtue, but I was painfully shy, or I'd have died before I hit 30, like a number of people I knew.
I was always glad to educate somebody who wants to know "what it's like," and I've had a few of those conversations, too. My mom regretted a few questions she asked, but appreciated the answers after a while.