We live overseas, but our mail here is unreliable. Can we use my parents' address in the States for our mailing address? I've indicated we live in a foreign location.

On my personal info (and my wife's) we've noted we live in a foreign location. I've noted that each of our children lived outside of the US for all 12 months of 2020. Is it okay to use my parent's address for our mailing address?