The moral of the story, not everyone is going to like the same things you like, and not everyone is going to be good at what you like to do. And if someone says they can't do something, respect that. Don't press them. Don't say how much fun they'll have. You don't know their limitations like they do.
Don't 'should' on them. It's rude, and selfish.
You might try to press them, make them see how much their missing, with the honorable excuse that you want to bring them out of their shell, or comfort zone, thinking you are helpful, and kind. But in all reality, that is not kind.
You don't bring people out of their shells, you don't change people, they change themselves. You can't make people fit into your brand of fun. It doesn't work that way.
You can inspire people. You can encourage them, most of all, by leading by example. That's it.
Also, this is a big one. Respect other people's limitations. Be kind, and don't try to urge people out into the deep 'water' before they are ready to swim. To do so could lead to the unpleasant experience I am about to relate. And you have to live with the consequences.