Worn out winter tyres

Some time ago I bought a car. It was pretty exited for me as it was my first car ever. I was dreaming about it for whole my life and finally I had my own car. Of course I could not afford a new car. I bought my car from my neighbor who really is a nice guy and his car was just great. And he offered me good price so I just had to buy it. There was nothing to think about. What was more my neighbor added a set of winter tyres and I was really glad for that as winter tyres are pretty useful in winter. But I did not wanted to spent more money so they were jus perfect for me. I was really exited and I was driving my new car almost all the time. The winter tyres were put in my garage and they were waiting for the winter to come. And with the first snow I decided that it was the time to change the tyres. I took them to a mechanic who had to change those tyres. But when he saw them he told me that those winter tyres were just worn out. He said that I had to buy new tyres and that I should throw away those winter tyres. They were old and they were even worst than my summer tyres. As the mechanic said it would be better form me not to change the tyres at all or to buy new ones. I was disappointed but I had to buy those new winter tyres. Changing tyres is very important and I had no choice. And I changed my opinion about my neighbor who just got rid of old and worn out tyres.