Quoting kr.r:" Yup. Smurf sucks. I mean, I am grateful it was available to take my son to the ER because I was worried ... [snip!] ... to go to Children's Mercy to be observed and would only let him leave in an ambulance. Just under $2,000 for the bill. "
Yup. Now, you don't get charged is you don't use it. So anyone can choose to call, but what matters is if teh services were rendered.
I had a car accident and the ambulance was called because the police were called. I got checked out (now I know to refuse, lol) and it was like $200 even though all they did was basically ask me question and look at my eyes. I didn't really understand though that you could be like "I'm good." I could have just gone to urgent care (which I did afterwards) because unless the ambulance is going to take you to the hospital it's not like they can do anything for small things.
But if you get care it's the same as if you went in to see a Dr. It's the guardian's job to foot the bill. However, the guardian could possibly sue someone else in order for them to pay if there is a good reason (say taking the child into the ER for no reason and running up bills without parental consent).
Generally though? Nope. It's the parents (guardians) job to pay the bill.