Are tents next to RV at campgrounds okay?

Just curious if most campgrouns/rv parks are okay with a tent or two being pitched next to an RV while at a campground. Looking at bunkhouses, but would really like to have the comfortable space instead. But if we didn't do a bunkhouse the kids would be outside in tents sometimes...weather permitting of course.

Do most places approve of this? Do they charge extra? If so, typically how much more?

Thanks!