My wife & I have an 18-year-old son. He started university in September, studying medicine. There he met this 41-year-old man - a classmate, and they became really good friends. This man has just started university now at this age because apparently he was born poor and in the first half of his life was focused on making money, but medicine is a dream of his. Son has always been an introverted, shy, socially awkward kid with little friends, but now goes out often. Honestly my wife & I are uncomfortable, and we can’t help but side eye the dude.
You had it right with the maybe. You’re projecting your own feelings. That’s not bad vibes but your concerns as a parent.
So, what exactly are your concerns and worries? The worst I can see happening is a romantic relationship developing that ends up in heart break or a power imbalance. The school has the man’s information. It’s not like he can whisk your kid off to a sex cult.
More likely they’re both nerds and nerding out about medicine and DnD.