It's all about self control. Know why you are drinking, how often and how much and what your limit is.
Here in Germany you can legally buy and drink beer at 16. Most people I know started at 14. Drank my first beer with my dad at 15… last week saw all this destroyed tourists at the Munich Oktoberfest. Fucking scumbags have no decency, no self control, not used to to the volume and strength. Behaving like pigs in a barn.