Is it normal to never have had a nightmare?
Yep.Totally normal
Yes, it’s normal to never remember having a nightmare. People’s dreams vary, and some rarely have frightening ones—or simply don’t recall them.
There’s a wide range in how people dream. You might have mostly pleasant or ordinary dreams, or not remember much of what you dreamed at all. A dream can also fade from memory before you wake up enough to notice it.