I began volunteering as an EMT in Va.Beach in 1985. I was surrounded by fellow volunteers that were paramedics who never considered once to do it full time. They were bankers, lawyers, housewives, business owners and retired folks. They were all good at the job, some were amazing. When I began, I just wanted to try something new and help my neighbors. It didn't take long for me to become jealous of those that could start IV's, Intubate, medicate and defibrillate. (This was WAY before intranasal meds, King Airways and AED's) I saw it as a way to get help faster to patients as we could go POV to scenes to meet responding unit (when primary unit was busy).
I then went to "Shock-Trauma" class (Enhanced) then Cardiac Tech (Intermediate) then Paramedic.
By then my idea of becoming a school teacher had waned and I applied to local paid fire departments. I was hired as a full time FF-PM locally and continued to volunteer on the side for another 7 years. I volunteered a total of 15 years.
I'm now approaching my eligibility to retire from the fire dept. It's been an interesting career being involved in Tech Rescue, HazMat, SWAT-Medic, Regional Teamwork, and yes, Precepting new Paramedic students from Tidewater Comm College for over 20 years.
Your mileage may vary, but I would offer you the hindsight I have; If you enjoy the work, go for it. You never know the curves in our road of life. Getting all the training you can get before you get married w children is always best but can be overcome.
Yes, get your street experience. Nothing beats solid fundamentals with situational awareness, observation and assessment skills, team communication and task delegation. Being the guy that is trusted to make quality decisions in tough times is golden.
Find some exceptional mentors in your area, learn your protocols and have fun with it.
GoodLuck!