Are gas golf carts street legal for highways if insured and everything?

It depends on the specific laws and regulations of the state or country in question. In general, most jurisdictions do not allow gas golf carts to be operated on highways, even if they are insured. Gas golf carts are designed for use on golf courses and other private property, and typically lack the safety features required for operating on public roads, such as headlights, brake lights, turn signals, and seat belts.

In some cases, it may be possible to obtain a special permit or license to operate a gas golf cart on public roads, but this is typically only allowed in limited circumstances, such as in a low-speed community or for agricultural purposes.

Because regulations pertaining to street-legal golf carts vary vastly state by state, if you wish to take advantage of them and be compliant, ensure this with local law enforcement to avoid possible consequences or hefty fines.