1098-T box 1 empty

So my husband went to school for one semester in 2020 and didnt go in 2019. But he recieved a 1098-T for 2020 but box 1 is empty. He receives financial aid but shouldnt there still be an amount charged or payments made to the school. I was on financial aid in college in 2019 and always had a value in 1 and i didnt pay out of pocket?