We’d be willing to spend the whole time in Switzerland. Stay over in various locations for ten days
Can I assume that the various generations have different hopes and expectations of what they want to do and see?
If so, can you find a blending of that and describe what (not necessarily where) you all want to see and do together?
Are you looking for Heidi? Or to watch Swiss Chocolate being made? Or mountain hikes, or mountain transportation for folks who don't like hiking? Or animals? Or maybe watch making or miniature trains?
Are you do-ers or look-ers? Move around or selfies?
Will you have a couple of bases and go around each or do you want to move on most days?
Some of these answers would help tailor the answers to your group....