I'm curious about the specific questions asked. For a few years I drank so infrequently that across a year my weekly average would be below 0.25 drinks/week, b

I'm curious about the specific questions asked. For a few years I drank so infrequently that across a year my weekly average would be below 0.25 drinks/week, but I wasn't a "never" drinker. There might be a difference between people who literally never drink (recovering alcoholics, lifelong teetotalers) and those who do drink, but who do so so infrequently that their average would round down to 0 depending on the question asked.