Why not? Hobbyists enjoy what they do, relieve stress by doing it, do it with passion and pride, and focus on doing the best they can. Professionals do it for a paycheck, are stressed by their work, focus on doing what won’t get them fired or laid off, and get distracted thinking about the hobbies that they could be doing if they weren’t working. Pros do tend to have more experience, so it’s a bit of a trade-off. But hobbyists aren’t inherently bad, and have some points in their favor.
There is some crossover of course, people who love their jobs and would do it as a hobby if they weren’t getting paid for it.
