Dollar Tree

Was wondering why closing the restroom at dollar tree is necessary. I recently had to leave the store on the second occasion without making a purchase. I take medicine that causes me to urinate frequently I had a buggy full and around 20 people in front of me in line to check out and was refused even begging to use the facilities but to no avail so I left without purchase. Then 5 yr old niece was told she couldn't use the restroom because of covid and she didn't make it to another bathroom before she wet herself and was humiliated. Why is your bathroom safe for employees but dangerous for customers when walmart's, family dollar etc isn't? It's just a ridiculous rule with no data supporting it just like the mask mandate which by the way employees never have followed and I have never once saw an employee clean a buggy or door handle some may/june