Girl, you for sure don’t want to waste your time with this guy. If he still plays games or owns action figures that are still in the original packing, it doesn’t mean he is immature.
Sure, his interests are quite childish but if it makes him happy, who are we to judge, right?
But if he is unable to take care of himself or of you, he is not worth your time.
His immaturity can be seen in so many ways and his behavior will probably even embarrass you in public. When something like this happens—it’s time to bounce.