The bottled water industry exploded during the 80s, that's when it became big. But even without that, a canteen is a thing.

Lol, thinking you're healthy now so it has no impact is a little silly. That not always how long term exposure presents itself. But either way, you might not have been ok. I can play Russian roulette and win 100 times, it doesn't make playing it any less dumb. I wouldn't brag about how I played Russian roulette 100 times and won, it just makes me look like a lucky idiot.