"reverse 60 fps locked" game

Recently people complain a lot about games that are locket at 30 or 60 fps. So now lets switch the roles.

Our team is developing kart racing game, a bit cartoony, not realistic, arcade, suitable for children. However our engine works properly only above 60 fps. If framerate drops below 60 physics engine freaks out. People in team are #pcmasterrace so we claim that anything below 60 fps is unplayable anyways so for us everything is okay. I’m the only person in team who doesn’t like 60 fps but I can’t convince others to take a look at the issue so I decided to create this thread to see what people think about games that are locket at 60 fps but from the other side - literally unplayable below 60.