It is estimated that about one billion own a bike in the world. Half of these people are in China while about 30 million bike owners are in the US.
Sure you can make your own bike, as long as you have all the right tools, equipment, and pieces to construct your bike.
2
Yes, it is reasonable to own bike insurance if you use your bike a lot in a well populated place, or if your bike is expensive. You can never be too careful.
one
1,000,000 not good
It depends how you are going to use the bike. If you are determined to use the bike for many years to keep yourself in shape, it would be a good investment to buy your own. If you just want to lost the baby-weight and stop using the exercise bike, it's better to join a gym.
Means you get on a bike and deliver items for a delivery company to people who the items are for. Many big cities like NYC have bike delivery services.
too many
14
2 if iits is an normal one
Preferably only one at a time.
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