Our college senior has very few expenses that we don't already cover. His on-campus apartment, including all utilities, is paid up until he graduates in May. I send him money for groceries, on-campus meals between classes, school supplies, clothes, etc. He also gets spending money for Uber Eats, haircuts and other extra stuff. My mom and sister also send him random amounts of spending money. Since he's a senior, they've been very generous lately so he can enjoy his last couple of month in college. He'll be graduating debt-free.
He is already very fortunate and I don't just want to send him $1400 for no particular reason. DH and I have decided that we will send him $400 from the stimulus money. I will keep the other $1000 in our savings account, and mentally earmark it for him. He is studying to become a professional singer/actor and breaking into the volatile and hard-hit theater industry might be difficult. If he needs money to travel to auditions, take new head shots, make audition tapes, etc. he can use that leftover $1000. That's our plan.