I think there are a few problems with your ideas, though. Such as the fact that how good elderly are with technology depends on how much they use it from person to person and depending on what generation they were born in. For the sake of this game, they would have had computers whole whole lives and to suddenly be bad with them just because their older makes no sense. Mini and normal golfing is an everyone sport as in bingo a game for all ages. Plus the whole clothing thing is questionable because of the whole generations things as well. At one point medieval ages were when grandparents were born, at another point grandparents were originally from the renaissance era, and one day "millennials" will be grandparents. This means what clothing is considered "stereotypical" of older people to wear will also evolve in real life and therefore in a game like this that doesn't really have an official time (as far as I am aware) that it takes place, it wouldn't make sense to say their is clothing befitting of an older generation. However, more interactions may be befitting as there are some talking points and actions that may make sense. However, it does seem like adults could talk about their childhoods to children just as easily as the elderly.
