I don’t have an issue really, wear what you want and feel comfortable in. However, now more and more people are getting into it who don’t come from an XC or roadie background, so it’s bound to develop it’s own fashions. Even back in the 90’s, we came from a walking/climbing background and used MTBs as just another way to get out in the wild and didn’t do lycra, we just dressed in walking gear with a bum bag with a few tools in. I’ve always since the mid 90’s worn shorts because roadie lycra was alien and just plain wrong. Possibly, subliminally, we didn’t want to associate ourselves with ‘them/that’, I’m not sure tbh. Nothing has changed for me in 20 years other than shorts fashion has gone a bit longer.