Pretty hard fool
Suzuki makes a good bike, however this is too vague of a question. This would depend on what model of Suzuki dirt bike, the type of riding you do, maintenance and how hard you ride it.
You can not drive a dirt bike (as in motocross bike) on any street. They are not meant for roads. They have no lights or indicators and the noise and pollution levels are also very high usually. You can't register a motocross bike. It would be very impractical and expensive, as the costs of maintaining a motocross bike are staggering. For example the engine can only last 20-50 hours of working time before you need to rebuild it. If by dirt bike you mean hard-enduro type bikes, then it's a different story. They are usually legal to drive on roads, although not very practical or comfortable as well.
The difference is that the mountain bike tube is much burlier and wider than the dirt jump tube but may not be as strong in terms of hard hitting strength.
They have a VIN on the frame but can be hard to find and are not all in the same spot.
Any bike can be jumped but the landing is the hard part. In your case I wouldn't try it unless you have a death wish!
all a racer does is just like any other would train hard and get to move up to more competitive races
I'd start with a dirt-cheap MTB. It's most likely to be made of a steel alloy that's not too hard to weld motor mounts and stuff to.
for 370 its hard to find a good dj bike. your best bet is to look for one used cuz unless you have a least 700 dollars your not gonna get quality bike.
so dust and dirt dont get in it.
14.. i have one and i can drive it perfectly well.. its not hard to drive.. id say you can drive one at 12-13 with a helmet
if you are doing simple little jumps, the light bikes of today make it easier, but it still takes patience and practice. if you want to be an x fighter rider that would take a lot of skill and years of practice. http://www.dirtbikefanatic.com/dirt-jumping-bikes.html
YES, for anyone who rides them, from the first timer's all the way up to the pro's. If you think about if you are careful and don't race or do big jumps and wear potective gear then your pretty well right.