Nice reactions till so far, tks.
The flight is just a shorter sightseeing flt, just to give them their "baptism". I took my own kids with us on longer flights, long time ago, even as far as Spain in a Seneca-II. Was never a problem, they fell asleep soon after engine start for the late flight and slept through a refueling stop late at night in France. I hope my grandchildren are also "naturals".
But things have changed, I'd like to offer them some more protection during T/O and LDG.
Yes, I got balder....not braver