Other examples of jobs would include being a technician in a local computer repair shop. Or setting up your own consultancy/repair business. Or working for one of the franchised mobile repair organizations.
There are a lot of different jobs out there.
Certs give you an edge over people without them - assuming equivalent experience. You will find, though, that people who already have lots of experience will beat you in the race for a job until you have got more experience.
Of course, the prospective employer might not want to pay very well - so experienced people would not apply for that job!
Harry.