I’ve used the system c2c marketplace platform many times and noticed that buying from other people in most cases is cheaper than in a regular store. Even if you sell or buy goods from acquaintances, seemingly directly, there is always an intermediary in your transaction. This is the online resource on which the communication takes place: a web platform, messenger or social network.
Today you sell baby things, of which the child grew up, tomorrow looking for a babysitter for him, and the day after tomorrow you buy a bicycle for the baby on Avito. I explained it to you briefly as best I could.