Talk to some engineers from a state country or culture that Engineer a title not a verb. They'll completely flip out at someone calling themselves an engineer without the royal title having been granted, merely because they're doing engineering (as a verb). Also some HR personnel outside tech are incredibly and stereotypically classist with respect to degrees being necessary for hiring. There's the attitude from K12 education system and most who believe themselves middle class about any career path not involving a college degree "Our kind don't become carpenters, can't you get a degree in wood-art or business and then build things?"