Great thinking to planning ahead
I was thinking of doing this too awhile back, ill give you some tips that I found when I was researching it. First you have to ask yourself if I work on motorcycles everyday and come home am i going to want to work on my own? Most likely not. Another thing is, look at the way the economy is going, most bike shops I know locally are going in the whole because no one can really afford it, but of course that may differ in california, but being a local mechanic in California is hard too because of the cost of living. Also what happens when mechanics doesn't work out for you? Now your going to have to go to college to get a degree in something sorta universal and half the time your burn out by that time. I was also thinking about running my own shop too, questions to ask yourself are do I want to devote all of my time into that? The first few years are going to be rough just to even get your name out. You won't have time or money to even ride during those times. Also if you ever have a family you won't see them that much either. A business degree like mentioned above will also almost be mandatory. I'm not trying to discourage you, just some tips from my research. If you stay dedicated you can accomplish anything in life
Also just because you are certified doesn't mean your guaranteed a job because think of how many other people are competing for the same job