Be a good parent or a bad one?

My daughter forgot her project this morning when she left for school. Its due today. This is her 2nd project this year and she forgot them both times. My beef is she didn't forget to grab her iPhone 6 before leaving for school. I took the project the 1st time but this time I'm debating going to school. I think if she gets a bad grade she'll prioritize better. Should I take it like the good mom or teach her a lesson, school before social media, and let her fail??

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