No it is not.
Paintball is not illegal in Japan. You can play at the related link.
It is Illegal to play paintball inside city limits, unless you are at a legitimate field or have a large (enclosed with proper net) private property.
In any woods you own, or at a public field. Anywhere else is illegal.
people who play paintball play because some of them want to be in the military or law enforcement or to experience paintball
paintball fields or on their property.
At paintball facilities, or their own property.
No, you must be 11 to play paintball in the US.
If the children are not old enough to play at a certified field, then it is more than likely illegal. The average age for a field is around 10 to 13 years of age, depending on state or local laws. The legal age to purchase a paintball marker is 18, but can be used by a minor with consent.
Similar to most states. Keep the gun away in public, don't shoot in public, only take it out in a paintball shop or field. Do not fire towards houses. Basically, any firearm rules apply to paintball.
I don't know how many counties, but ove 100 countries play paintball.
You can play the fiddle in all 50 States.