Alignment goes out from potholes and curb strikes, and around here that is most of the year.
A car that pulls to one side, a steering wheel that sits crooked on a straight road, or a front tire with the edge chewed off are all alignment symptoms.
Left alone it will quietly destroy a set of tires, which costs far more than the alignment would have.
Worth checking after any hard pothole hit and whenever you buy new tires.