Is it normal not to have nocturnal emissions?

Yes.

https://teens.webmd.com/boys/wet-dream-faq#1

Thanks

You're welcome.

Yes, it is normal for some individuals to not experience nocturnal emissions, also known as "wet dreams." Nocturnal emissions typically occur during puberty and early adolescence as a result of hormonal changes and increased sexual arousal. However, not everyone will have them or will have them with the same frequency. The absence of nocturnal emissions does not indicate any medical condition or issue.

It is important to note that individuals undergo hormonal and physical changes at different rates and times during puberty, and the occurrence of nocturnal emissions varies from person to person. If you have concerns about your sexual development or reproductive health, it is always a good idea to consult with a healthcare professional who can provide personalized advice and guidance.