I can think of three not insignificant problems with not wearing shoes to a gym but you do you
I am interested to know what these are.
I wear socks still if one of these was picking up bacteria related. Grip is not an issue if that is also a problem.
Hmmmm.....ankle stiffness is not a problem if you're thinking roll overs. Protection? Nah a weight will fuck your foot up regardless.
I've been doing it for years and never noticed any problems or significant stressors to make me reconsider it.