So total aside, inspired by the mention of denatured alcohol. How come you can buy bitters, which are up to 50% alcohol (i.e. 100 proof), without having to be of legal age?
During prohibition, certain bitters were legal because they were considered "nonpotable". Angostura falls under this category, whereas something like Campari or Fernet Branca would be considered potable. Basically they didn't think anyone would be able to drink enough to get drunk from it. I assume a similar logic applies today.
I tried to buy bitters at 4 am the other day and they wouldn't let me due to the alcohol content. Pretty stupid, since getting intoxicated from bitters would be about as much fun as drinking cooking wine.