Yes — totally. It’s a normal thing people do here.
There’s no law that says you can’t camp at the beach. People beach camp on Maui all the time locals, families, friends, and visitors keeping it mellow, respectful, and having the time of their lives.
A lot of what you read online comes from other rental company rules (not Easy Campers Maui). That’s where the “not allowed” confusion usually comes from not from how beach camping actually works on Maui.
If you want the deeper breakdown of why the info online sounds so different and how this actually works on Maui, you can read the full explanation here.