I have a question that might sound stupid. I have been told that when you fill in the I-130, I-864, G-325, etc that they have to be in capital letters. Is this true?
I have seen instructions for I-864 that require capital letters. What about the other documents?

Thanks!

It is highly recommended to use all capitals where specified on the forms, it helps reduce data entry mistakes.

Is there a list of the ones that require capitals?

The I-864 did not (itself) say tyo use capital letters but a instruction on the USCIS site did say it.

Thanks!