pay ambulance

in japan, people can use ambulances free.it usually costs money to use them in the other countries so i feel lucky that japan has free ambulances.however recently people have discussed whether there should be a charge for using ambulances.
some people use ambulances when they don't need them.they use it like instead of taxi because they know that they don't have to pay money.hospitals usually cannot resist people who call for embulances even when they are not sick at all.
more than half of people who use ambulances are not seriously ill.maybe they are a little sick but not in emergencies.so there are not enough embulances when real injured or sick people need them.
those are some of the reasons why some people think there should be pay embulances.i recently used embulance when i had stomachache.i was just fine when i arrived at hospital so i felt very embrrased and sorry for using it.i was glad that i didn't have to pay for it when i paid expensive medical bill at the hospital.but when i think there might have been real sick people at the same time i used embulance,i feel very sorry for them.so i think there should be pay ambulances to prevent unnecessary use of ambulances.