My tires aren’t wearing down after 15000km

(last photo is when they were brand new)

I’ve done over 15000km in 10 months on my MT125 with those stock Michelin Pilot Street tires. I run around 24psi front and 27psi rear.

I ride a lot, mostly in city and twisty roads. I live near Amalfi Coast so it’s my go to destination to have some fun.

Even then, they look they can do another 15000km easily. I don’t understand how is this possible, and it’s not a good thing because they don’t give me a lot of confidence.

My dad has an M1000R and after only 7000km the metal strings were visibile on the tire.

Are my these tires made out of the hardest rubber ever?