Yes, I always had very high resistance too, though that was partly because I grew up on 'small beer' (watered down European style beer) because the house we lived in had no fresh water supply, y'know, medieval styleeee so by the time I got to the age when Europeans start drinking seriously (around 14) and going to bars (around 16), I could already easily drink most of my friends under the table.
It's not that I need alcohol to give me confidence - I have plenty of social confidence. I just can't dance, that's all. I'm the world's crappiest dancer, and I just look a COMPLETE idiot when/if I ever attempt it. So I just don't do it.
I used to do all sorts of other tricks to get attention/impress, like climbing onto pool tables and doing Freddy Mercury impersonations or whoever was playing, or just all kinds of other stuff, but dancing? No way.