Of course, but riding with a hood, for example, on a rainy day, I used to look at the situation in the mirror and when I saw it is clear, I had to do just one blind spot check. Without a mirror it is more complicated. However, in all the other situations, riding without a hood (99% of the time), having a mirror was too much of a scare for me - without much use. Plus it was one more gadget on the bike.