My undergrad took this to the extreme. Our lowest level math class was Calc 1 and to get into the class you had to either take Calc AB in High School or show up

My undergrad took this to the extreme. Our lowest level math class was Calc 1 and to get into the class you had to either take Calc AB in High School or show up to school a couple months early and take it before Freshman year started. I knew people that would fail out of our engineering program and go to another and get a 4.0. Me personally, I had to unlearn all the bad crap my Physics teacher in High School taught me. It took an entire semester to get back on track but was well worth the hard work. You can see how much harder Engineering and the Sciences are, from my own experience I thought getting my MBA was a breeze compared to studying engineering. Nearly everyone else struggled and worked their asses off, they had zero preparation for all the math and logic problem you had to work through. The solution is to force EVERY major to take a few REAL math classes and REAL science course so people have a solid foundation.