Here is a sentence one of my spanish friends wrote:
Creemos que esta distribución se debe a que los alumnos/as tendemos generalmente a "rivalizar” o “criminalizar” a los profesores, mientras que (...).
I noticed that she wrote "tendemos" instead of "tienden" and I wanted to ask her if it is an error but she told me that it is a way of including us as students, so grammatically, it is not wrong. I do not get the logic here. For me, this is an error of conjugation and it has to be "tienden". Writing "tendemos" makes no sense to me. Please can someone explain or elaborate. Thanks!