For the most part older men are not going to be as insecure as younger men.
They understand that you have a life of your own to live, just as he does. Therefore, there are going to be times when you want to go out with your friends and he wants to be at home.
However, if he is prone to jealousy or possessiveness, this will be a problem (as it would be in any relationship). If he is unable to accept this, move on to a more confident man.
Just because he’s older doesn’t mean he has settled down. Think of how you would feel if the shoe were on the other foot.
Pay attention to the way he’s treating you and the language he uses.