Yes. At least for visits. Akin and Tazendra would be the real wanderers. Tazendra because... so many new things to see and fight and such. Akin because... well, part of his nature is an endless quest for novelty, and he really likes humans and wants to see all the different ways they can live, in hopes that he can bring them back for his human friends. (Even telling them about the Federation would be nice -- it can be done!)

Somehow the two most likely to 'settle down' in the sense of having a SO also are the two most likely to go off on adventures.

Do you think Sion would eventually be comfortable with getting married... especially since he probably could go meet a woman who didn't know he was royalty, since he can worldwalk now? (Though maybe that's not something you spring on someone...)