As someone from a family with lots of artists (including my father who supported the family with his art after being invalided out of being an army medic after a stint in a Japanese prison camp in WW2, and one of my sons who earned enough from his art and music to buy his farm) and myself having a passion for art, I have to argue with that assumption! Despite having had many lessons and practised hard throughout my life, I have no artistic ability whatever, I can barely draw a stick figure. I inherited the family music and wordskill no problems, and those do improve with use, and strangely I can carve, sculpt, embroider, work metal and such with no problems, but painting and drawing utterly elude me. No idea why! Hence the blanket assumption of ‘it just takes practice’ annoys me.