Saying it will happen is different than saying there is nothing you can do about it. In good weather, it really is a non-issue. In long stretches of bad weather, where you are trying to maintain as much dry gear as possible, having some isolation from brushing against wet surfaces is a viable strategy. That requires double wall or larger shelters where you are less likely to either brush against wet surfaces or have it dripping on you. I still prefer a double wall shelter and one heavier with more traditional pole structure than what is popular on this site. You control contact with moisture which is just another word for “staying drier”. It still often ends up being a moot point because if you hike all day in pouring rain you get wet and there is a limit to what you can do to manage it, especially in multi-day situations. For me, while on the move and exerting, staying dry is not so important. I want my camp stuff dry (including my sleeping gear) but if I’m wet while exerting it rarely matters. Warm is important, dry not. In camp, I want to be as warm and dry as possible. Being dry is important to staying warm and it has physical as well as psychological benefit.
