I'm left handed too but I don't get what you mean by "add left-handed stuff."
I also have a suggestion
Left handed movement for mobile like a thumbstick on the right side of the screen.
(IDK if there is a left-handed control for mobile)
A large majority of games have left-handed controls; I don't know why ROBLOX doesn't. I'm right-handed anyway, but they should offer left-handed controls. Support.
OMGGGG LEFT HANDED PEOPLE ARENT REPRESENTED ON ROBLOX ENOUGH! RIGHT HANDED PEOPLE ARE SO PRIVELEDGED AND LEFT HANDED PEOPLE ARE OPRESSED!!!!!!!! UGH EDUCATE YOURSELF, IM VEGAN xddddddddddddddddddddddd.