shopping should be simpler. some customers did not understand why, for example, they cannot choose a shipping method when the address is not entered. such one-page windows cause confusion in mobile traffic. in the end, it turns out that it does not make it easier for customers to shop, but only makes it more difficult. The most acceptable option would be for the customer to enter only e-mail address and telephone numbers and that I would like to pay immediately. whoever needs it can enter the data later on the invoice.