Is it common to be unemployed when attending University?

I’m just curious to see how many people are employed. This is my first year of university and I am currently unemployed. I did have a job throughout grade 12 though. I quit it so that I could commute to school more easily. I regret quitting a little bit as I have recently discovered that I probably could have worked on the weekends. Anyways I’m just curious to know if it’s common or uncommon to be unemployed while attending university.