Eating instead of smoking
Perhaps using an analogy of eating would be more useful. Yes, eating is a requirement for life so we all must eat; but what to eat? A healthy life could be made with plain tofu and steamed vegetables. However day after day it would get really boring. Add a few spices or some meat and dairy foods and meals get more interesting.
I liked Nathalie's comments on the variety of clothing that women can wear but are generally off limits to men. Skirts and dresses are a good start. Now we get into the old thread of, "if women can wear pants why can't guys wear skirts?"
The real reason we cross dress is as varied as the population here, we all have a slightly different reason. For me it is an enjoyment of the "nicer" clothing with pretty colors and the accessories. I also find that dressing gives me a sense of relaxation and peace. Any sexual connection has long since vanished, I'm 66. As for it being a "destructive behavior"; I fail to see how that happens given any number of other alternative behaviors.
I dress because I enjoy it and I plan to continue.
Hugs,
Sandra1746