I imagine most people hold that opinion. People don’t want scribbles on their walls. That’s why they hide the crayons from their toddlers.
Our world os covered with pushy stock-photo ads saying “WOW! XYZ for 9.99/month BUY NOW!!! Yaaaa!!!ヾ(⌐■_■)ノ♪”
What if all those ad spaces became art spaces? Murals would add beauty, culture, and serenity. Honor history, accomplishments, unheard voices, nature, abstract, superheroes, wherever.
So many canvases could be available for us to view.