"More" implies that some is already being done, for the most part. I don't want to get into an Internet argument with someone about pedagogy because obviously there's no objectively correct answer. But you can believe what you want to believe and go become a teacher if you'd like. Administrators often want your students to never struggle. This is pushed upon teachers, especially new ones, even in their learning. I was lucky enough not to just have a degree in education so I left pretty quickly, but while I was teaching I was pushed to dumb down my material so that every student could achieve an A. I was told to fit my student's every preference so that they might get an A in the class. Not everyone should get an A in the class.