A good environment for the toddler to thrive in is a child-proof home and a parent who smiles and claps when he makes the smallest of achievements. The teen is seeking his identity, partly by experimenting with likes and dislikes at this time. Sometimes their ideas or likes and dislikes aren't part of the mainstream, and, therefore, they want to dress differently to express what they feel. They need some acceptance of this too, because they see their clothes as an expression of who they are. 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.