Ceramic non stick pan, light scratches after first use?
There are two different substances that are known as "ceramic nonstick". One is a coating of ceramic material and silicone, offered as an alternative to PFTE (Teflon), and the other is actually a PFTE coating with tiny ceramic "buttons" that protects the PFTE against abrading off when you use metal utensils.

For either coating, one possibility is that you're not actually scratching off the coating.  Instead, your plastic utensils are themselves scraping off tiny bits of plastic from their edges on the ceramic material and leaving a "smear" of plastic on the pan.  This is similar to scraping the edge of an American dime on granite; it leaves a mark, but that's the metal scraping off on the stone, not the other way around.

The way to verify if that's the case would be both a touch test of the "scratches", and trying some utensils made from other materials (like wood or fiberglass) and see if they also leave marks.

The second possibility is that your plastic utensils in fact have fiberglass, bamboo fibers, or something else extremely hard in them.  This could actually scratch the underlying nonstick substance (PFTE or silicone), which is quite soft, especially if the plastic untensils consist of something like fiberglass encased in relatively soft plastic.