My boyfriend never wants to go out. How can I encourage him to go out more ?

he says he is happier playing football manager than going out. i like staying at home too, and enjoy my own space, but i do think it’s important for a couple to go out sometimes. i need some advice please? i am good at suggesting stuff and he will, after being nagged at, agree to go out but he never suggests stuff. it makes me think that actually we don’t have anything in common – i am missing something other couples have, or are men just not that interested in going out? he says now he has a girlfriend he doesn’t need to go out!