Nervous about son’s first Cub Scout camp away.

Hi there, my eldest son (9years old) is very excited to be going on his first camp away with his cubs/scout group. 
It’s getting closer to the date and I’ve just started getting nervous for him and wondering if myself or my husband should go with him as chaperone? I want him to have independence and he’s very much at the age where he’s noticing his differences to his peers at school and has mentioned before how he doesn’t like to be different. But I worry he will be okay as it’s for 2 nights away. He’s done sleepovers at his my mother in laws house before and my my mum without us but this is such a different circumstance. 

my main worries are:

his being home sick

facing overwhelm and him not saying anything, he gets quiet rather than showing outward signs until he then starts to behave unlike his usual self.

not listening to safety rules.

One of the Cubs leaders is a lunch supervisor at his school so does know him a bit. 
And another leader is my youngest sons beaver leader and is very good with him (he has speech delay and awaiting autism assessment) 
These things make me feel a little at ease but I’m still on the fence. 
Any advice from any fellow scouting Sen mums?