How to Be a First Time Drinker in Japan

My grandparents have offered to take me on a rather luxurious trip to Japan. My only concern is that they refuse to wear masks. By the time we're there, October 2033, I will be of legal drinking age. So any recommendations you could give for a first time drinker would be appreciated. Cole from Las Vegas. Imagine being from Las Vegas and never drinking and then going to Japan and beginning. That gets my vote as much as I love the other end of Japan. Tohoku is a lot nicer in autumn. The temples like Yamadera Shrine in Temple are beautiful in autumn. OVGP, one from Cole. Oh, God. Like Cole is a name.