Footwear in PSIV?

In PSII and III, there was foowear equipment, and in PSIV, it was removed.

Why was footwear removed in PSIV? Did the staff just not think it was needed? In PSII and III, footwear was not used much, and probably could have been utilised better. Is this why, perhaps?

Sure it's a strange thing ! Maybe in PSIV they are all Barefeet ? (barefoot ? I'm not sure ! )

Well, Rika and Nei certainly wore kneehigh boots. Or stockings? Either way, very Zettai Ryōuiki!

In the manga like stills in PSIV, they are shown to wear footware. As are the rare digital shows in ps2 and ps1.

I think, the people on Alisa 3 were stir crazy and had a fad of changing footware often.

But the people on real planets had no fad and no need to change footware often.

True that the need to change footwear is maybe not so urgent as to change weapons and/or armor and/or shield ! But in many RPG's the characters are walking a lot so...