SUBREDDIT: r/relationships
TITLE: Me [23 F] with my sibling [20 M], he wants to drop out of college and work in the tech field.
POST: I'm not a tech-savvy person, but my brother has always been. He's learned a lot about CS and web dev. He currently is halfway through school at a well-known university studying computer science. He got an offer to work with a start up/tech company to make money.

He's explaining to me that jobs in the tech field don't necessarily need a college degree to get them. Currently he said he's going to take a year off, but if everything goes well OR if he feels as if he's gained enough skills, he won't return to school and will continue to work in the tech field.

I feel as if he is young and ambitious, but I'm also stuck in the mindset that in this society, individuals need to have a college degree to get a job. Am I being unreasonable? I am supportive of him, but want to make sure that he is making intelligent and well-thought out decisions.

Any advice from individuals in the tech field that can assuage me of my fears for him?
TL;DR: 
Brother wants to drop out of a pretty well-known school and work for a start up doing web-dev. Trying to be supportive, but know nothing about the tech field. Is he making a smart decision?