They can handle their parents not liking their clothes, but they can't handle being rejected by parents because of their clothes. Teens thrive on opportunities to learn from their own mistakes. If they quit a job after two days of work, it is exciting for them to experience the pros and cons of that decision. If they spend all of their weeks or months spending money in one day and have nothing left for the remainder, they may or may not like the result, but they love the fact that they were respected enough by their parent to be given that choice. As a result of that, the teen in turn feels respect toward the parent.
Mutual respect is the basis for a good parent-teen relationship.
Getting your teen to open up to you is important in building and maintaining a relationship, but know that they won't open up about everything because of the following. First, the teen would feel like a small child if they told you everything. Next, their peers can relate to them about some things much better than a parent can. There are, however, some topics they would like to talk with you about instead of their peers or in addition to talking with their peers. In talking with you, though, they will most likely not want to hear any advice unless they come right out and ask for it.