They carry them for protection. Its against the law,to carry them if not authorized or without a licensed.
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people carry weapons for protection
In general, we live in a peaceful society in which it is not necessary for people to carry weapons, whether concealed or displayed. However, depending upon a person's specific circumstances, it is sometimes useful to carry weapons and sometimes useful to carry concealed weapons.
Certainly.
to beat people up
cops and people with a licence
No. All airplanes can't carry weapons but some airplanes can carry weapons. If it is a military aircraft so yes they can carry weapons but if it is a friendly aircraft so no they cannot carry weapons.
Yes, airplanes can carry weapons. That's quite true that some airplanes can really carry weapons.
No
No. Friendly airplanes are civilian aircraft, civilian aircraft do not carry weapons at all, they just carry passengers and items.
No, drummer boys of the civil war did not carry weapons. All they did is drum.
The space shuttle doesn't carry weapons.
Yes.