Please note that I have no affiliation to Vivobarefoot, they are one of many brands of barefoot/minimalist footwear. They may not be specifically appropriate for you and I recommend a foot assessment if you have structural concerns with your feet. For a generally stable foot, this kind of shoe allows for better movement of the foot and splay (spreading) of the toes. I strongly believe in Dr. Courtney Conley's work, so you will see many more of her videos (and her company, Gait Happens).
Wide toe box vs Wide shoes
Minimalist Shoes vs. Cushioned Shoes
Shoe Fit Test
More: