We may not think of supermarkets as places with strict dress codes, but it turns out one thing they don't accept is people walking around barefoot.
El Robertson, from Bristol, found this out the hard way when she was asked to leave Asda because her feet didn't match the dress code.
The keen hiker ditches her shoes wherever she can, and even trudged up Mount Snowdon with without anything on her feet.
She previously told of how she now has to use trainers when she goes to the supermarket after Asda staff ere displeased with the sight of her toes.
El Robertson decided to take up the barefoot lifestyle two years ago after wading through a stream on her hike, and not wanting to get her shoes wet. She has since vowed never to buy a pair of shoes again, as they're "unnatural".
The 25-year-old went so far as to dub shoes "foot prisons" and claims she finds it "liberating" to go without. Despite the rough surfaces she's had to walk on, her feet has never been in better condition.
El, who was always barefoot as a child, said: "Going barefoot was an awakening of how I should be and how well it works for me.
"I feel like it is quite misunderstood as people always tell me how it's dangerous and irresponsible. Although I feel more secure and confident without shoes on, I'm also able to get proper feedback from the ground.
"My feet are a lot more grippy than shoes on the rocky ground. I always almost go barefoot."
Despite not wanting to use shoes, she now has to wear one of the few pairs of trainers she has to go to the supermarket.
El explained: "When I go supermarket shopping I have to wear shoes though as shops don't like me in there barefoot.
"I have been into my local ASDA and have been asked to leave and put shoes on. I think the bottom of my feet are probably cleaner than what's on the bottom of some people's shoes but they are allowed to wear shoes.
"I don't feel embarrassed but I think other people don't like it, maybe some don't like seeing my toes when food shopping."
She also wears trainers if she needs to look nice for an occasion, but for every day, she'll either wear her barefoot shoes, which are 'minimalist shoes that often fit each individual toe, or go entirely without.
As well as hiking barefoot, she also lets her toes free when she's driving, foraging in the woods and on grass.
Since changing to a no-shoe lifestyle she has noticed a drastic change in the appearance of her feet. She explained: "I don't think I will buy another regular pair of shoes again.
"When you look at most people's feet, their little toes are so curled in and it's not natural, it's what shoes have done to people's feet.
"When I stopped wearing shoes, my feet widened and my toes now have gaps in between each of them, because I was a barefoot kid anyway I have always had wide feet but the main thing is how my toes have spread apart, there is also a big pad of muscle in the arch and mine is now a thick strong muscle.
"The skin on the bottom of our feet is so thick, so piercing skin is rare in the woods but in cities, there might be things to cut you.
"I stood on a thumb tack once which was really painful. I think I could walk over a small amount of glass but I try and be sensible.
"I've not had one blister since going barefoot and I never get hotspots on my feet, only when I put shoes on now I get hotspots. Blisters, arch support and ankle support is a thing of the past.
"I find it very liberating, I enjoy to shock and impress people and by being barefoot it's the easiest way to do that. Also the confidence it's giving me in my own feet is unbelievable.
"I believe I could walk almost anywhere barefoot. There is nothing I can't walk on now barefoot and if I'm in woods, I use pinecones as foot rollers and massagers."
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