I'm 5"9. Yes I do feel the pressure to be skinny, but then again I think most women do in 2013. I reckon I'd feel the same way if I was shorter - most of my friends are concerned with their weight, as young women are, whether they are 5"6 or 5"2.
Some people think size 0 when they say "skinny". I simply think "slim". The ideal is to be slim regardless of height. Some taller girls want to fit into that swimsuit model category. Short girls generally look best when they are overall "petite", Eva Longoria style, and therefore thrive for that ideal.
The beauty image has changed in the past 30-40 years, and it's not just high fashion models. Men have changed their preferences as well - they grew up jerking off to Victoria's Secret models. I read that the average Playboy model today has an underweight BMI, which they didn't 30 years ago. Most of the models in men's magazines are in fact underweight. Men are just as receptible to social conditioning as women are. The idea that men will only be drawn to women who look "fertile" is no longer true - plenty of sex symbols have narrow hips and straight bodies - they do not signalize fertility, yet they are sex symbols.
I will admit that my goal weight is one that would make my BMI "underweight". I don't feel underweight when I'm at that weight - my stomach is flat and my thighs are slim, but I do in fact have to eat and diet unnaturally in order to get there - as most "hot" models out there do too. If I eat a normal, healthy diet and exercise regularly, I will still be a few pounds over what is ideal aesthetically. I know many models - they do not have normal diets. In one way or another, at least occasionally, they will starve themselves. That goes for swimwear and underwear models too.
There is a misconception that "anorexic" means a woman has bones sticking out or a tube with artificial food into her nose. Anorexia is an eating disorder, and plenty of women have it, even if they look just "slim" (or "she has a great body"). I know several women with eating disorders, and they are very popular with men.