no, the paintball gun is dangerous and is not allowed in some places.
if you are asking about some back woods then the answer is yes, its gennerally just fine, if the property belongs to someone ok it with them first, if it is city property it is gennerally a good idea to contact your local police first and ok it with them, in a public place is never a good idea (parks, walking trails etc) just make sure the general public is well out of range and you should be fine
There is no record of any Incan sport of "paintball"
any age !
No, you need the owners permission.
Yes paintball is an amazing sport to play ive been playing for about 6 years now and im not thinking about quiting any time soon
phosphor and paintball paradise
There aren't any (non military) training places for paintball. The best way to improve is to listen to older players and play as often as possible.
$40-50 dollars
In any woods you own, or at a public field. Anywhere else is illegal.
It depends on where your backyard is. If it's your backyard and you are in a rural area, you should be OK. But if you are in a less rural area, there may be laws against discharging projectile weapons like BB guns, arrows, and paintball guns.
not in a carry on bag, but they may be checked into your luggage without any worries.
You can't significantly.
Paintball is probably too advanced for children under 7. However you shouldn't let any child play unsupervised, especially if they don't have the proper safety gear.