Logseman you are completely right, the most native speaking Germans "do it wrong"
Konjunktiv is also a popular example of being lost and forgotten. Thus I also had a hell of time learning the language
what - apart of poor grammar usage drives me up the wall regularly is
- the habit to mispronounce literally every "ei" as "ai" (even in foreign names or brands
)
I sometimes think it would really be better if they would use ᛇ for ei (yew tree is Eibe)
- the habit to read "sp..." as "schp..." and "st..." as "scht..." AFAIK only the northern german dialect doesn't