I've heard you will be injured less stepping on something Sharp while barefoot as compared to wearing a thin sock because you will stop yourself when you feel it. Might be different with a kite pulling you though
This is to some extent true, yes.
But another version is:
If you use boots most of the time, and only occasionally barefoot - you WILL get injured a lot, when you loose the boots
Whereas if you go barefoot always, you hardly ever get scratches
Why is this ?
Simply because, you learn to adapt and tread correctly when used to bare feet
Difficult to write, as it takes years to learn and adapt in muscle memory - but an example:
With boots you just step down on the bottom in low water, and thats it.
With bare feet - if you can not see the bottom, or are at a new spot where you dont know what is on the bottom - you typically let yourself drop gently backwards in the water on your back, and then you can step down without having all the weight on your foot/feet till you know its safe.
Or a more moderate way, is to let the kite pull a bit, so you step down on one foot only, and with almost no weight because you let the kite lift - and IF some obstackle is on the bottom - you can pull yourself up again, OR let yourself fall on the back - to avoid stepping on something.
If used to boots and out barefeet - you will just step down like you do normally, and cut yourself seriously sooner or later
Maybe it sounds odd - but believe me, it is like that - and thats why many used to boots trying to loose them, go back quite fast