Yes, yes you can :)
no you can not ride it legally
If you're talking about a normal British public footpath then the answer is there is no age limit because it is illegal to ride a bike on a footpath. You may only push it!
It is legal to ride a bike on the sidewalk in this area.
absolutely. riding an unregistered dirt bike is illegal, unless on your own private property
In this city, it is legal to ride a bike on the sidewalk unless there are specific local ordinances prohibiting it.
No
There's no solid answer to that. Some places do have mandatory helmet laws, others don't care. Some paths CAN be pedestrians only, while other paths are for dual use. You have to check your local regulations.
yes you can ride pocket bike in Miami only 49cc with lights.
No, unless it is a street legal registered dirt bike.
No it is not legal to ride a mini dirt bike on sidewalks in New Jersey. In some states it is legal to ride mini dirt bikes on sidewalks.
no because it is just has a normal bike
Yes, it is legal to ride a bike on the sidewalk in Georgia, but cyclists must yield to pedestrians and give an audible signal before passing.