If you hear some young, unschooled person say, "Oh, Dustin Hoffman, he played Ben Stiller's kooky dad", point them towards the other memorable characters that more accurately reflect this performer's invaluable contribution to film.
Based on a true story, The Best Little Whorehouse in Texas is in the storied tradition of the kind of goofy ribald musicals (anyone remember Shirley MacLaine as a hooker in Sweet Charity?).