Stick with me son, you’ll do well.
Seriously though; dress codes are divisive and simply serve as some sort of indicator of status, which, at a do where people are meant to enjoy themselves, is just rubbish. As for the ‘no trainers’ thing; the best footwear to dance in is something comfy, not some stiff-soled unforgiving thing that leaves you crippled. It’s a policy adopted by clubs who want to appear a bit ‘up market’, but they’re invariably shite. Full of people who are too busy trying to look good and ‘fit in’, than relax and have a good time.
Sometimes you have to smarten up a bit, because it’s convention, and you don’t want to cause embarrassment. A mate of mine went to a friend’s wedding in a tatty jumper, cords and moccasins. Everyone else was wearing suits. He stood out like a sore thumb, and just looked scruffy. He felt out of place and a bit ashamed actually.
But clothes do not maketh the mayn…
No, but dancing does!
Have you seen me dancing? Y’know, reaaallly dancing??