I bring in my son to be seen at Urgent Care and we...

I bring in my son to be seen at Urgent Care and we wait 3 hours. Not many people are here so i don't understand why its such a long wait!!! Some people come and go but they still have their spot in line. Not fair. Once I'm in the nurse tells me they only have one Dr so it's gonna be a while for the Dr to see my son. It's ridiculous not only to me but to other people that come here!!!