I didn’t learn about that law until my 21st birthday. To me having a glass of coniac especially on special occasions was pretty normal. We also had red wine with pasta, and martinis when my parents decided to break out the shaker. Oddly enough I don’t really drink alcohol outside of social settings now and even then I drink the same glass over the course of hours.
Yeah, my parents didn’t really let me have more than a glass and these events were weeks sometimes months apart. It was very much intended to foster a healthy relationship with alcohol at a young age.
Also in my household you didn’t offer to pour a glass for someone you just told let them help themselves if they wanted unlike things like lemonade or tea. I’ve noticed as a result less people tend to drink or drank less if you didn’t offer to get them a glass.