For me, it's not a matter of "knowing any different". My first beer was non-craft, and I couldn't get past the neck of the bottle before finally giving up on it. It was six months before I could actually finish a 12 ounce bottle of any beer (it was a Molson), and even then I only really struggled through it because I was tired of being the one who wasn't drinking anything. That was when I started exploring other drinks, and ordered them exclusively - until I was introduced to craft. So personally, if craft beer hadn't existed, I wouldn't be a beer drinker. I simply did not like the taste of macro beer.