Why is there a degree for Web Design?

Why is there a degree for Web Design in some colleges? If you gonna freelance why need a diploma? Or is it possible to work in a company?

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It also lends to your credibility. If someone has a kick butt portfolio along with an education - guess who is going to get the job first? That being said - your experience is definitely most important and a strong portfolio will make or break you. I worked a lot on a beginner's portfolio throughout college.

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