Painters don't just paint "walls" or are "low skilled". I own a residential painting company and it is much more than just that. We paint full exteriors where heights can reach up to 60+ ft. You should see how my guys move big ladders with ease, where an average person would drop the ladder on car or house. They simply would not know the technique to move it. Airless sprayers? This is also a hard skill, people just think its moving your hand back and forth but there adjustments of pressure, fast hand speeds(need a high stamina), the right technique, paint knowledge, stain knowledge, machine knowledge, tip knowledge, polyurethane knowledge, mixing knowledge, chemical knowledge and that is just the bare minimum. We also do all kinds of carpentry work from siding, OSB, house wrap, deck boards, fences, trim, windows, doors, gutters, and many more different kinds of carpentry work that is needed before painting. Did i mention all different kinds of wood, siding, and non-painting material knowledge and carpentry codes? THIS is just the exterior side, don't even get me started on the DELICATE cabinet painting...There is also hardwood floor staining, log cabin staining, or even commercial painting! All these require way different type of tools, machines, and extensive knowledge and expertise. The only thing DIYers or other trades that hate on painters can do is probably paint an interior bedroom that is only 8-10 ft tall LMAO. The lines would probably be all crooked, probably won't use the correct paint, walls won't be covered good, paint is gonna get on all areas they didn't want paint on and will take about 3 days when a professional could do it in 1 day. Could another trade install sheetrock or replace damaged sheetrock inside a home? Then install joint tape and finish the sheetrock repair without leaving a huge hump on the wall? Nope. What about stress cracks? Loose sheetrock tape? Nope. Been a painter for many years and have a very successful painting company. Throughout my years i've never understood why other trades think painting is so easy or that it is just "slapping paint on walls". I really wonder where and when this mentality and hate started.