Huh? Any decent-sized bank these days should be set up to print and mail a check to somebody in response to an online payment request (you just need to set up payee entry with the payee’s name and address and your name and the account number or whatever the payee uses for you).
Courtesy, loyalty, respect, perseverance, honor, integrity and self-control in one’s actions.
How to read body language to tell when someone is being dishonest with you or has harmful intentions.
Why you should save and invest at least a little money for the future.
Non-mathematical cost/benefit analysis to show that there’s no free lunch. Whenever government or a corporation says they’re giving you something for free, there’s a cost somewhere.
How to converse with someone you’re attracted to. Not a “How to Pick Up Girls” type of thing. How to overcome anxiety; how to interact in a respectful, safe, and effective way; what not to do and say.
Esperanto. Just kidding.
Obviously.
Because Klingonese would be much more useful. 
