While this is true, and it's a great freedom that's not offered in many industries, it can lead to an unrealistic "I will build the perfect system from scratch

While this is true, and it's a great freedom that's not offered in many industries, it can lead to an unrealistic "I will build the perfect system from scratch in my parents' basement" effect. It's equally important to realize how much we rely on the work of others, and how little we'd get done if we actually tried to reinvent the news station/wheel/web stack.