I was surprised to learn that in MA, you are not required to have ride-along time in order to pass an EMT-B course. Seems a good way to find out if you are suited for the field.
True, but I would think that anyone unsure of if they would like it or not should get a ride-along with a company BEFORE they pay for the classes. Personally I fell in love with EMS when I was about 10, but never realized it until I did a summer ride-along with a local company.