Why wouldn't you? They are delicious.
To what are you responding to?
Liking long island ice teas.
Indeed they are. However their inebriating effects caused me to leave some wreckage over the years.
So... when I got remarried, even though I was in my mid-40's, and my girlfriend/fiancé/wife was in her 40's, she was married to a piece of crap for 15 years. So I thought I would do the right thing and ask both her mom and dad (they're divorced) for permission. Dad's was meeting at TGIFriday's for a couple Long Island Iced Teas with her brother. That's been a thing ever since. My FiL and stepson now always find time to have a LIIT when we travel.
Funny story, though: when my stepson got married, there was a rule at the bar that no drinks with multiple alcohols would be served. I pulled one of the bartenders aside and said "look, I got $40 and the fact I'm the stepfather of the groom that says you can figure out a way to get me a couple Long Islands to celebrate" and I told the story. He says "no problem; in the future, with me, ask for a "whiskey sour" and you'll get that exact same drink!" I went over to my stepson and my father-in-law, and we toasted, and I told them "ask the tall bartender for a whiskey sour and this is what you'll get". About an hour later, my stepson comes up and says "taste this Long Island". It was disgusting. Apparently, the tall bartender didn't know who the groom was, and when he asked for a whiskey sour, wink wink, he actually got a whiskey sour.