Down sides to being a TT Camper?

We have enjoyed over 40 years of RVing, from a pop up all the way through to our current MH. Most campgrounds expect the use of a tow vehicle and you park at your site. When making a reservation, simply explain the length of your RV and what type it is (TT, MH, etc). If making reservations through Reserve America or on line in any way, the length of the site has almost always been listed (a 25' site means what it says (you wouldn't fit!). A 40' site the same. Often they will list maximum length of RV allowed on site, taking into consideration the reality that you have to tow it to get it there!!! In all of our years, there was only once we couldn't park our 2nd vehicle (tow or toad) on our site, and that was because they had messed up our reservation and had to put us on one we did not request (nice discount because of they mistake too!). Of course, in most sites you will not be able to stay hooked up. Generally sites are not designed for that, unless advertised as such. Your worry is not necessary on this issue - at least in our experience.