Is a high school student ready for college math?

A high school student may be taking all the classes required in math to get admission to a state university. The same student, when the time comes, passes the high school exit examination set by the state. But does this mean that the student is ready to tackle college level math? Surveys prove that the most likely answer is no. Of all the students who took the ACT for admission in college, only about 50% have the ability to earn a C grade or higher in college algebra. The rest of the 50 are not prepared for that level of math. These statistics have been proven by a study done in 2006.
It was supported by college professors and instructors who believe half of high school students are incapable of understanding college level mathematics. The individual who do end up in a course that requires math, need to take remedial math classes to come up to speed. These classes add to the cost of graduating from a college and the time taken to earn the degree. Additionally, the chances of such persons dropping out of college is extremely high.
The end line is that not every high school student is ready to face the vicissitudes of advanced mathematics.