The Sims 4 Jungle Adventure is here

"Simburian;c-16350110" wrote:
I tentatively tried to take one Sim to Selvadoria but found the whole family came as well.

that's happened to me often, when there's another Sim close to the one who wants to travel: they are selected automatically, just like you said. i remember it took me some time to realise what was going on and that i had to "deselect" them. :D

have fun!