As someone who goes to karaoke lot (like 3-5 times a week, different venues), I assure you we admire anyone who gets up there, regardless. We all have bad nights, and we all get better with time, too...vocal cords are just another muscle, after all. Plus, song choice is Key! We love when you sing along too! Also, duets, trios, more are a lot of fun for both singers & audience! IMO "karaoke" is a much nicer atmosphere than just "meat market" bars, ready-made conversation topics, common interest, feeling happy when a song begins you forgot you even knew until the first 3 notes ring out.....
P.s. I do not drink, at all, except water......