Camping in the US is a lot different from camping here, due partly to the fact that we live on a crowded little island so there aren't huge expanses of land to camp on and partly because of tradition.
TBH I don't really like campfire cooking it's a real faff, having to stoke a fire just to make a cup of tea and all that palaver, the gas stove is a lot easier.
Campsites don't allow fires as they have limited space and if you have a campfire that's a patch of ground that the next 3 or 4 sets of campers on your pitch can't use. Most sites will allow fires if they are off the ground, say in a BBQ or similar. It's scorching the grass they don't want.
You can't listen to your American friends, they don't even drink tea

how can you go camping and not drink tea?
We didn't pre-soak our tent and it was fine.