Are you what you do?

Are you what you do? 
 In some cases we can agree that "You are what you do" but in other cases not. Most of the time, or we should say all the time, jobs are gendered, meaning that women do the light job, while men do the hard job. But what do we mean when we say "light job" or "hard job"?. When we think of a hair stylist, the first thing that comes to mind is a woman doing that job, but not necessary. Today we could see that there are a lot of men working in that field. Sometimes we have our jobs to support ourselves, that doesn't mean we love what we do, we do it because we have to.