I have Michelin Primacy 4's on my Civic X 215/55 16. Total around 5-7K km driven, I'll confirm.
I have noticed some side wall degradation on another one of my tires. One was the result of a bad pothole run and resulted in a ding on the sidewall. It hasn't changed much.
But the second one is new, I'll share pics later but for a tire this age, this is surprising and brings back the horror memories of the Advan dB's I had a few years ago. Had to replace them at around 35K km with bubbles in three tires.
Primacy 4's are great grip and comfortwise, both in dry and wet, but this damage is quite concerning.
If I have to replace these early, what to go for, I don't know. It may be Karachi roads, or maybe the P4's are too weak on the sidewalls.