I was expecting you to say "We're both 14". Not 22. Because that's the level of maturity on display by him.
Why were you crushing on him? Is it because he's good looking? If so, this is a lesson on biscuit tin men. The sort of guys that come in pretty boxes and when you open them up, there's nothing inside.
Big disappointment, but that's the way things go.
With more experience, you'll get better at picking out the Matryoshka Men. The Russian Dolls. When you open them up there's something of substance inside. Open that up and there's more of substance. And so on, right down to the inner core.
If he's not even good looking, why did you crush on him? Did he seem sweet and nice?
I'd say give this man 2 more chances. Arrange a 2nd date. And at that date tell him what you're looking for in a man. Try to do it in a positive / humourous / diplomatic / vulnerable / open / honest / clever way.
You're not expecting perfection. But you don't want to take on the Mother Role.
On the 3rd date, if you get that far, see if he's taken anything you said on board? Any improvements at all?
In the meantime feel free to meet and go on dates with other men.
McD's is fine as long as he was great company. Good conversation. Him in a rock solid good mood. His good mood rubbing off on you. Etc.