Some people just can’t spell. I worked with MD/PhD’s who couldn’t spell a lick either. I was given publications to proof read for spelling stuff. Mainly the sound the same spelled different sort of stuff that spell check didn’t pick up 15 years ago.
I did alterations on a prom dress for a family friend’s daughter. Said daughter was a national merit scholar and got a free ride to the local state college. Her handwritten note attached to the dress when I picked it up said ‘take in at waste’. I was shocked actually. But these kids haven’t had anyone actively correct their spelling. It might hurt their self esteem.
No one notices if I misspell a word when I am talking...