Mixed tyres

Hello, I would like to know if it is useful + advisable to upgrade to all-weather tyres or even winter tyres, it is about tyre size 185/60R15/84H front drive. The background for my question is the fact that I don’t have 10tkm each year and I have the changeable storage thick. Some say so and the others so. Where can I possibly read this? Of course, the tyre industry wants to sell and recommends its products. separate flaps. My car workshop doesn’t feel safe and talks about risk and a tyre dealer even thinks that winter tires would be in question year-round in the year-round performance ? ! After all, they would be rather old than crazy. Who can help me ?