I am not a teetotal, but I drink a lot of tea Funny word.
I do drink alcohol, just because I like the taste, which doesn't mean I get drunk every night or drink every night. I like a glass of very good (Islay) single malt whiskey, so I would have huge money problems if I would drink loads and every day.
I think I have a healthy diet and treating yourself on something you really like, but not is not healthy is okay. There are lots of nice things that are bad for you and you can get addicted too, like coffee, chocolate, etc. As long as you are not bringing other people in danger or affect their health (like smoking, or become a aggressive alcoholic, etc). I think there is nothing wrong with treating yourself on something you really like.
I know people who are straight edgers and people who drink now and then and it's all fine.
What happens I think is that people start drinking at a younger age and more too because of breezers and other fizzy alcohol drinks. It is easy to drink not noticing the alcohol (took a sip from a friend and it's really horribly sweet, yuk!). I believe it is wrong that the industry is trying to get teens hooked on alcohol like this.
Another quite old (but still going on) phenomena in the Netherlands is with student organisations where you have to do lots of horrible and stupid introductional tasks/assignments before you can become a member. It often involves a lot of drinking and it does happen that young people die of drinking too much.