It depends a lot on what the carpet is made of.

Nylon is the strongest fiber that carpets are made of, and so nylon carpets are the longest wearing carpets. 10 years is not old if it's a nylon carpet.

Olefin is the least expensive fiber that carpet is made of. My experience with Olefin carpets is that they last about 15 years, give or take 2 or 3 years.

You should be able to get 30 to 40 years from a nylon carpet in a residential setting if it's vaccuumed regularily. Not cleaning your carpet is the single biggest thing that will shorten it's life because road grit (if you live near a graven road) will get into the carpet pile and literally cut the fibers to shreads when you walk on the carpet.