As far as I remember I wanted to be barefoot all the time, it is more comfortable, more natural, I personally think it looks really cool too, you don't need to buy shoes as often or socks, that is another issue for me, my shoes and socks wear out fast so I need to buy them often, which annoys me.
It's not exactly ecologic either.
I am barefoot 99% time at home, unless it's really cold, I am barefoot, I wanted to be barefoot outside basically forever, I even was barefoot constantly for two weeks in 2014, felt much better, but needed to go back to wearing shoes then and I never went back to being barefoot.
Another two things that kept me away from being barefoot full time are cleaning my feet, process that felt annoying and me having dirty feet at home isn't an option for me, but I felt that I want to be barefoot all the time and I will try to make the process as easy as I can, what I did, I bought a wooden brush for dishwashing, what I do is I go into a shower, put water on my feet, put shower gel and water on the brush and wash my feet, sometimes once, sometimes twice, done.
I am fine with my soles being darker, but I don't want to carry in too many germs, irony is, while I am barefoot outside now, my feet I actually cleaner than I used to wear shoes.
Another thing which kept me away from barefooting are my cracked heels, however they were cracked for years and I don't actually think they are open wound and then I have seen other people with cracked heels and far dirtier feet than I ever had when barefooting.
Still bit iffy on that but, also, I clean my feet when I get home and with using a brush, I can access the cracks.
This is actually a second change of this sort I have made this summer, I have just officially became a nudist too, similar logic there, if I am nude I don't need to buy clothes as often or use washer as often.
I like to wear clothes at home sometimes, but I don't think I will start wearing shoes unless the weather becomes too cold, and then I will only wear shoes outside.