Simple present tense

Question

what does it mean Do you go to school today? - do you have a plan to go to school today or do you regularly go to school?

can we say Do you go to school today? - is it correct

Do you have to go to school? Yes, I have to go to school. But I don't go because I am not well - is this correct

Answer 1

What if:

Do you eat breakfast? Yes I eat breakfast.

Are you going to eat breakfast? No, I have already eaten.

So:

Do you go to school today? No, today is Saturday.

Are you going to school today? Yes, I have class.

Answer 2

It would be perfectly correct to ask someone,"Do you go to school today?".

Imagine waking up, coming in for breakfast and seeing your roommate and asking them, "do you go to school today?" or "do you work today?".

The second part where they reply "But I don't go because I am not well" is incorrect. They haven't gone yet so the correct phrasing should be, "But I'm not going because I'm not well".

It would probably be most common to hear it phrased; "Do you have school today?", "Yes, but I'm not going because I don't feel well."