Is the use of the Present Simple grammatically accurate in these lyrics, or is it an example of so-called poetic license that allows for violating grammar rules for the sake of rhyme:
It is the evening of the day
I sit and watch the children play
Smiling faces I can see, but not for me
I sit and watch as tears go by
If we read the lyrics as a prose text, wouldn't the Present Continuous be a more correct choice here since the text describes an ongoing process at the particular moment? The whole scene can also be seen as a picture requiring the Present Continuous for its description too.