People come to barefoot running for different reasons. Some want fewer injuries, some want a stronger stride, and some simply like how it feels.
None of these are guarantees. The evidence on barefoot running is mixed, and what helps one runner can bother another. But the reasons below are the ones runners cite most, with a plain note on what is solid and what is just appeal.
This is general information, not medical advice. Build up slowly and see a clinician if you have foot or leg problems.
1. It can lighten your impact

Land heel-first in cushioned shoes and your foot strikes ahead of your body, sending a sharp spike of force up your leg. Most people who run barefoot shift to landing on the mid or forefoot, which softens that spike. Researchers who study foot strike have measured that a forefoot landing largely avoids the sudden impact that heel-striking produces.
2. It builds the muscles in your feet
Modern shoes do a lot of the work your foot muscles would otherwise do. Spend time barefoot and those small muscles have to engage again. Over weeks and months, that can mean stronger, more capable feet.
3. It encourages a shorter, lighter stride
Without a cushioned heel, overstriding hurts, so you naturally shorten your steps and land more softly. A shorter stride under your body is gentler on the knees and hips than a long, heel-first reach.
4. You feel the ground
Bare soles read the surface beneath them. That feedback is part of the appeal, and it is also what teaches you to run softly. With thick cushioning between foot and ground, the signal is muffled.
5. It is simple and cheap
Barefoot running needs no special gear. If you use minimalist shoes, they are usually cheaper than high-tech trainers, and you are not locked into replacing an expensive shoe every few hundred miles.
6. Many people find it more enjoyable
Plenty of runners describe barefoot running as freeing, the same small pleasure as kicking off your shoes at home. On grass or smooth sand, you notice your surroundings more. Enjoyment is not a small thing: the running you like is the running you keep doing.
7. It makes you pay attention to form
Cushioning hides sloppy technique. Barefoot, you get instant feedback when your form is off, because it stops feeling smooth. That honesty is one reason coaches sometimes use short barefoot strides as a drill.
A reason to be careful, too
The same sensitivity that helps you can hurt you if you rush. Bare feet and lower legs need weeks to adapt, and the transition is where injuries happen.
Read barefoot running tips for beginners before you start, and see the minimalist running philosophy if you would rather ease in with minimalist shoes.