“Why do you take so much time for a sketch you could be done sooner if you just took less time.”
Maybe. But these are people’s characters and I know they love and care about them, and it may be a sketch but it deserves the best effort I can put in a sketch because it’s for them and seeing their characters makes them happy. It may not be worth the monetary value, but it’s worth it for me. Maybe I’m shooting myself in the financial foot in the long run, but so long as I am allowed that my art, sketch or more, makes people happy I am going to keep at it until my last saved dollar.
You’re not a machine we put money into and get art out of. That person misses the point.