Ha ha slowly it came to that yes. I own one pair of Levi jeans (my waist fluctuates too much and my social calendar demands none of it so I just don’t keep more than one) which I rarely use (tropical country now). Only gym and running shoes, I’m a sandals guy. Of course this changes when I’m in New York in winter but I still just have boots and that same single pair of jeans I suppose.
Well I don't know New York but in a proper pub they will be fine with whatever trousers and shoes you have. For that matter I once walked into a country pub (not one where they know me) in only wet swimming trunks and we persuaded them to serve us on credit.
That's exactly what I'd wear to a pub, bar, restaurant or cafe so not sure why you'd think that would be an issue. Even most nightclubs don't bother about dress codes much these days.
On a light note, ... You don't own any pants or shoes at all?