Mykalo! I loved your comment! Ha ha

I must admit I had a good laugh when I read it. I really do pity American/English poor kids who only have to "learn" (actually this is acquisition, rather than learning, if they are exposed to the language at a very young age, and no worries it is not as painful as depicted in the article) just a couple of irregularities in the English language. Plenty of non-native English speakers managed to study it (in school, not by exposure!) along with their mother tongue - most of the time more sophisticated and elaborate in structure of the grammar.
As a native speaker of Polish (where a verb is not only in a different form for each person of plural and singular but also depends on the case applied - 7 of them!!!) I am happy to claim all Polish speaking adults manage to decline perfectly and have no post trauma. Rather quite opposite - it gives us extra ability and ease in learning other languages.
Please, don't be afraid to use your grey cells, don't worry, your brain is capable of much more ;)