system
Given the following post, respond as if you're commenting on Reddit:
human
[Dune 2021] Why wasn't Paul Atreides wearing armor upon landing on Arrakis?

 Why wasn't Paul Atreides wearing an armor suit when he arrived on Arrakis unlike his father who was wearing armor?
gpt
The armor is ceremonial; armor does not protect against a lasgun, and shields protect you from everything short of one (and make using a lasgun suicide). 

The only risk is from melee weapons and other specialized gear like hunter-killers, and there is a very slim chance of that working when you're surrounded by all your soldiers.