Question about filing 1098T

Hello. I attend a public university in Texas and my scholarships exceed my tuition. For 2018, I filed a 1098 T and payed 600$ since I did not work at all. All is good. 

 

The problem is that everyone I ask about whether I should fill out this form does NOT fill it out themselves. And they are perfectly fine. My sister gets a high amount of taxable scholarships as well(it does not exceed tuition), however, when she went to report her 1098T, her tax filer just set it aside and did not care about it. People I've asked, who indeed receive financial aid marked as 'taxable income', tell me that they don't fill it out because they don't "care" about it(they have not received any notice from the IRS). 

In my view, it seems incredibly unfair that I file this form and have to pay an amount of money, while these people do not file it and they are fine. 

Is there something I am missing here? What merits whether one SHOULD file this form? Thanks.