It should be different if social norms dictate it should be different.
I couldnt care less what others wear in public as long as its appropriate for kids to see. So basically anything but swears and sex on shirts is fine by me.

More yoga pants in general.
If guys want to wear tights, go right ahead. They won't look any dumber than the skinny jeans group whose pants end above the ankle.

I do see some guys in tights at the grocery store. They are also typically in a wind jacket that is more form fitting a d they are overall skinny.
They are clearly dedicated runners who enjoy athleisure wear.


Your quoted question though... i t made me chuckle as the logical conclusion is men in bras wearing diamondnmounted wedding rings because you commonly see women wearing those things.
Thats cool if guys want to wear such things, but its hardly a well accepted societal norm.