You hav to understand it from their perspectiv - how much time shoud sumwun hav to take out uv their day to learn a language?
Not everybody you meet is a carefree rich kid with unlimited funds and plenty uv free time. Sum people hav to work just to eat, and realize learning English iz a possible path to getting out uv that rut, so scrape together the cash to take classez.
The thought must cross their mindz that thingz woud go much more smoothly and efficiently if the spelling made sense.