Are under bites so bad?

I'm 16 and have had an under bite for as long as i can remember.i went to the dentist for the first time ever about 3 months ago (We weren't able to get dental insurance until then) and after taking an X ray he automatically starts talking about how I have to get jaw surgery.But is this really necessary?Nothing in life is hindered by my under bite, so whats the point in spending all that money on a surgery that seems pointless?it seems like he just wants to suck more and more money out of my parents!
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Let's put it this way....no one has ever died because their teeth and jaws didn't line up perfectly.However, in today's world, people strive towards perfection a lot.Who knows, perhaps you are the next Heidi Montag or Spencer Pratt (God help you and us!).So, if your teeth and jaws don't line up perfectly, you can have surgery to line them up.Teeth are meant to interdigitate in a certain way.If they don't you can develop things like Temperomandibular joint problems or abnormal tooth wear.Some people would like to prevent such problems down the road if they could.So it really isn't a matter of your dentist trying to "suck more and more money out of my parents!".It is more a matter of, jaw surgery is possible, and it is his or her job as your dentist to present you with your treament options.
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