I have 2 alts, with all of their ships & modules resident on one of my FCs - if there was no shipyard & outfitting (along with auxilliary services) on the FC they wouldn't be able to travel along with me.It serves literally no purpose except to rob you of 3,000 Tons of Cargo Space that you could spend on something else, like Hauling 3,000 Tons of actual Cargo.
So, literally, it has a purpose, for me (and others in my play group) to lose over 3k cargo space for convenience.
Additional functions than being able to store other ships - or even sell stock ships if it takes one's fancy?Thus, I don't see why it even got implemented like that, unless there were additional Plans for it to have additional Functions.
If one doesn't have a specific use for all of the optional FC services, there is absolutely no need to install them, I agree!