BBM
I've lived in trailers;
The first one was nice, but older, and in a neighborhood setting, with a couple other people in the home. Trailers were at least 40 feet or so apart, nothing behind us, and at least 150' to the homes in front of us. I never heard much out of the neighbors and only then if both parties were outdoors. However, within ours, you could hear all us walking across the floors, talking in the other rooms, yelling, vibrations of folks getting up and down. Ours was tied down with cables, and had a decent sized covered deck. You could feel vibrations off the decks, and hear folks moving across them, too.
I've stayed in two others, not so nice, and both in trailer parks, and the trailers were very close together, but, I tended to tune out the noise around me after awhile. I think with noises around us, on a daily basis, we get so used to them, that they become background noise. Folks who come here from a big city can almost hear the silence. I had no deck at those, but, I could have heard, and felt it, if someone was messing with my windows or doors.
I am small framed, but on the taller side, and at that time, I was very, very thin. There's no way I could have gotten in, and out of, those windows quietly, and without leaving dna behind, not to mention, as you noted, the physical pain of going through them.
ETA: Just saw Amauet mentioning the "thud". Absolutely! It's why I went OUT the window in my childhood home's window, and back in, another route. My childhood home was a brick ranch with standard windows. I could go out them but the pain, and "thud" of coming back through the storm window, caused me to have an alternate route to get back inside. I had the two routes, instead of one, because I knew my family's habits, and I knew that home like the back of my hand, so there was good reason that I went
out the window too.