At BYU young parents are seen briging their children to class with them. I believe that a child should not be brought to class. I understand that being a young parent while still in school is hard, but by bringing on this responsibility you should be able to take the responsibility of finding a safe place for your child to stay while you are in class.
Ethos- Since this is still the first week of school I have not experienced this myself , but I have talked to a former BYU student, Reilly Carpenter , who was a young mother while still in school and asked her what she did and what her position was on this issue. She commented that yes it was hard at times but her and her husband worked their schedules out so that someone was always with their child. She also commented that if she had brought her daughter to class, not only would she not have gotten anything out of the lecture but either would the other students and she didn't want to be responsible for students paying for this great education and being distracted and not getting anything out odf the lesson.

Pathos- A study by researchers at the University of California, Berkeley confirmed that short-term memory problems are associated with an inability to filter out surrounding distractions, not problems with focusing attention. So therefore distractions such as a baby in the classroom can cause a problem for students and their classroom preformance.

Logos- I do agee that it is super hard to be a parent while still in school and sometimes there is nothing a parent can do and their child must come to class. So i do have counterexamples such as a quote from a professor who believes that it shouldn't happen but he understands that these young parents sometimes have no other choice and he says it does not distract him from his teaching.