Reading a post where someone mentions getting ID'd in their 30s under 'challenge 25' rules. Those were introduced in ~2011, when I was 31.
Meanwhile, to the best of my recollection, I've been asked for ID in the UK to buy alcohol exactly once: shortly after my 18th birthday when I was legally old enough but did not yet have any way to prove it. (We just went to the shop next door and bought our weekend beers from there instead.)
Is this the power of beards?


