Everyone makes mistakes. But, me as Estonian, it's quite hard to learn English, and learn proper grammar.. If there even is a proper one.
as far as I know, you can't insult on someone, who can do better than you in future. Maybe I will be a lot better, than some US/UK/CA people. You never know.
Reason why my grammar is shit:
1)School (School did not teach it)
2)Personal issues
3)No time
4)Learned my own, video games, movies.. But I still think it sucks. And I know, thinking like that wont help a lot.