t is a much more common letter than x, making the chance of confusion higher. x rarely gets used and kinda looks like a cross.

This reminds me of my buddy messing with a girl called Justina. When she introduced herself he responded by calling her Tina and ask her if she was a pop star or something since she only went by one name.

So post a few pictures of minimum speed limit signs at entrances to municipalities. Everyone else is saying they’ve never seen that (outside of highways). Nobody is saying there isn’t a minimum, just that it’s not commonly posted.