Is it bad to have mirror in front of stairs?

Answer 1

It depends, do you fall down the stairs a lot? (if downward-forward) Do you run into walls consistently after going up? (if upward-forward)

Answer 2

Having a mirror in front of stairs is not considered bad, but it can create an optical illusion and make the space seem larger or disorienting. It may also have a feng shui impact depending on the placement and direction of the stairs. It's mostly a matter of personal preference and how it fits with the overall design of the space.