I mention these matters because the shuttles are set up to be emergency life-boats. They aren't really comfortable for long-duration journeys.
Among other things, there's no artificial gravity when not under thrust, (and thrust is minimized). It takes a hardy voyager to make such trips. Food has to be low on your priority list.
But hey! Why worry about weight-gain in a weightless environment?
That's an excellent point. On the other hand, if it's crowded, smaller size would be a benefit.
” But hey! Why worry about weight-gain in a weightless environment? “
That’s what I always say....