1.) The character is most always influenced as to whats going on around them
2.) It influences the characters attitude and overall personality.
3.) May see changes in the character in general
The verb used would be ‘is’ because we’re talking about a group of people in the present tense. I feel we would use ‘are’ only if there were specific things were were talking about, like [we] are, [you] are, [jack and jill] are, etc. Though, this wouldn’t be the case with he and she, because they always need to be in present tense.
I don't think so about your question
Not sure I understand what you're asking?
