I think only the guardian have the right to do that with the person they think is suitable.
In general, a minor's signature is not legally binding because minors are not considered capable of entering into contracts. However, there are some exceptions, such as for necessities like food, clothing, and shelter.
The 'minor' has no say in the matter.
As long as they are minors, no they cannot.
A minor has no key signature.
Yes. However, the minor is subject to the actions of the ward(s) to which the minor is assigned unless emancipated. ( the adult ward can sell the car, or transfer title prior to the minors 18th birthdate without the approval nor signature of the minor ). A better way to transfer the vehicle to a minor would be to title it to an irrevocable trust assigning the minor as benefactor upon reaching the age of majority ( 18).
No, typically unaccompanied minors cannot book a flight without an adult accompanying them.
Laws govern the conduct and activities of minors. For example, a minor at the age of 16 may apply for working papers to enable an employer to hire a minor. Without the law that governs the working permission for 16 year old minors, there would be problems in trying to work.
The key signature of E minor is F#.
It depends where and what the minor is protesting and in what manner. Minors possess the right of free speech BUT like all citizens it is not an un-fettered right.
It depends on where you live, but generally, no, they would not drive minors unsupervised.
It is not necessarily illegal to talk to a minor without parental consent, but it is important to be cautious and respectful of boundaries when communicating with minors to avoid any potential legal issues.
There is only one sharp in G minor: the F# in the harmonic and melodic minors. The key signature for G minor is two flats, so the answer to your question is pretty much zero. Its leading tone, however, is F-sharp, always written with an accidental, so I suppose one could consider that there is one sharp in G minor, although not in the key signature. Please also see the related link about the G minor scale.