It took me a loong time to like beer. I'm not fond of the trend of really hoppy beers, and prefer Belgians. I still like craft cocktails better on the whole, but beer is worth acquiring a taste for.
If you have only drank the mass produced, mass marketed beers and say that you don't like beer, well then... that's your problem. Most mass produced swill is just that, swill. Please pour that back into the sick horse it came out of. If you want good beer, discover micro-brew.
I really like beer. The learning-to-like-beer phase for me was short. I do think it's kind of silly to keep drinking it if you don't like it though. Why would a grown person spend their money on something they don't like?