Yes. But the problem is everyone thinks they can design, and will offer an opinion, informed or not, on design work. Having an opinion on design isn’t the same as being a designer. Some opinions are simply better than others.
What sets a professional designer apart from the amateur should be the quality and variety of the choices the professional designer makes while working. Even though it isn’t always possible (ours being a subjective art), professional designers should strive to make deliberate choices in their work that can be defended. In designing your home, you don’t have to defend your choices to anyone. In designing products and services that will be bought and sold and used for serious purposes, your decisions had best be good: informed by an understanding of the context of use and tempered by experience, talent, and skill.