Why use winter tires?

Why winter?
During the winter period, when the temperature drops below 5-10 degrees Celsius standard summer tires are starting to lose traction. The tread of these tires is made of rubber adapted to work in positive temperatures (optimal adhesion properties and wear rates) and when they harden under the influence of low temperatures, the tread gradually reduces adhesion to the ground. The tread shape of summer tires is adapted to driving on dry or wet paved surfaces and does not provide the correct grip on soft snow. So to ensure safe winter driving, special tires are used, known as winter tires,