Why do models smoke cigarettes?

I've often wondered, why do models frequently smoke cigarettes? Is it a way to cope with the pressures of the industry? Or is it a stylistic choice to add a certain allure to their image? It seems counterintuitive, given the emphasis on health and wellness in the fashion world. But perhaps there's a deeper, more nuanced reason behind this phenomenon. Can you shed some light on this question and offer some insights into why models might choose to smoke?