I Have a Question

I'm 23 and he's 31. Is it all right ? Or is he too old for me ? I've known him since a long time since we live in a pretty small town where everyone knows everybody,but I never thought of him romantically before one year when we started really talking in a friendly way and I realised he's the greatest person I ever known. He's intelligent, cute and extremely funny with his sarcastic jokes that are only funny to him and me. We have a habit of eating lunch together 4 times a week and talk about everything and I soon started to look forward to these casual lunches. I really like his laid back personality, he seems to not give a flying f*** about the world around him. Yesterday, we spend the night reading books in silence; which is our hobby. I'm not really shy or something, I don't mind doing the first move and I really like him very much, and to me age is not an issue at all, but I talked about it with my best friend, and you know them...Doing everything to make you feel insecure even if not in purpose! She told me he was too old for me, and probably want to get married and start a family and I'm too young for all this. I actually asked him about it ( btw he was never married and doesn't have any kids ) he just told me that he doesn't think about it now but he would if he found the right person ( And he pinched my nose and messed my hair because he can XD ). And honestly, I don't mind settling down anyways; I don't do most of the things people my age do; parties , dating, drinking all night... that's so not like me. Should I make the first moves ? Is he really THAT old ? What do you think about it ?