I don't have sleepless nights over it.
Although, text language is so common that I do notice and appreciate the rare occasion where someone goes to the effort to make sure their text is well written.
A lot of people use text language out of convenience and there is nothing wrong with that, however, It would be worrying if you didn't know the difference between "there, their and they're" or "to and too" etc...
Although, if children are using "shud" or "cud" in exams that would be worrying.