And this is one of your main problems as a country. When I was a kid in Spain I had access to as much alcohol as I wanted, so with all my family and friends and school partners (hundreds of people). We had very few problems with that, being a "borracho" was bad seen by society but moderate consumption was normal.
There is nothing wrong for a kid drinking some wine or Sider or Cava for lunch, in fact a lot of families continue giving their children access to low grade alcoholic drinks as it was done since the Romans(before water filtering 100 years ago drinking water alone meant death by water microorganisms).
Later they forbid it, and "botellon" appeared. It was cool to do something against the law, "borracho" was replace with "pedo" without the negative connotations, and our young people started drinking like there was not tomorrow.