Actually, in the last 3-4 years this is no longer relevant. The Ministry of Health has long obliged state clinics to remove machine guns with shoe covers from the corridors, and either let patients in without shoe covers, as some do, or buy them on their own and give them free.
Because everything is just the opposite. In a paid clinic, you paid for the whole range of services, including shoe covers. After all, do not pay for the reception, you will not need shoe covers at all. In state polyclinics, it is prescribed by instructions (like in 2014) to provide everyone who came for an appointment or procedure with shoe covers for free, and if this is not done, you have the right to ask the head or chief doctor why. And come to the reception without shoe covers, if you were not given free ones.
Because there are no free shoe covers. If the client does not charge for something, it means someone else has just paid.
In a private clinic, the clinic pays. She receives money from the patient, but in fact, the cost of shoe covers is not included in the price of the service. If the patient comes with his shoe covers, he will not receive a discount.
Free is still easier. She is obliged to provide you with some services free of charge. But that means someone else paid for them. State or insurance. Both of them also end up spending the money they receive from you in taxes or insurance premiums, but that doesn't matter.
It is important that they pay for a specific set of services. And shoe covers are not included.
As far as I know, in free clinics, according to the law, you must also be provided with free shoe covers. But I'm not sure.
And in a paid clinic, as they rightly noted, the price of services includes the price of shoe covers. And imagine how it would look like: the horse takes a lot of money from you for services, and here you also have to buy shoe covers. This, of course, would be rejected by customers.
Because in a private clinic shoe covers are included in the cost of the service. Yes, and coffee is included in some clinics. But what is interesting - now sometimes shoe covers are given even in clinics ...