Most debris on the ground is not hazardous to bare feet — Born to Live Barefoot

Debris and other discarded items often found on the ground or walkways are usually unlikely to do any harm to someone's bare feet.

What are the dangers of wading barefoot in the river? - Quora

Most debris on the ground is not hazardous to bare feet — Born to Live Barefoot

Get Grounded: The Surprising Benefits of Being Barefoot

Reduce Chronic Pain and Stress in Delaware Through Grounding

Down to earth! Grounding or walking barefoot on earth has several physiological benefits - Lifestyle News

Barefoot movement looks for toehold

Grounding: Five Reasons to be Outside and Barefooted - Sheila Kilbane, MD

Barefoot, Ultimate Pop Culture Wiki

Barefoot on escalators is safer than shoes