Perhaps because taking state boards is difficult. Perhaps because a lot is at stake. I mean, should we just open the doors to any and all? And have people go through 2 to 4 years of schooling only to fail state boards--possibly repeatedly? That's a waste of the student's time and money and doesn't help the crisis at all.
I know there's a crisis and believe me, as a nurse recruiter, I want many many more people to go to nursing school. But, as a nurse, I want it to be qualified people. Now, I'm not really afraid of nonqualified people getting through because state boards will blow them away. But--it is foolish to let people in to nursing school, take their tuition money, put them through the trials and tribulations of schooling if they don't stand a reasonable chance of passing.
I may raise some hackles responding as I have but it scares me to think that a solution to the nursing crisis would be to "lower standards."
However, I'm sure you will do fine. I doubt you'll be put on a long waiting list. If you're just starting, give yourself some time to adjust. Relax! You CAN do it if you're committed and dedicated, even if you're not an academic overachiever. Some of the best nurses are C-students (some are A-students, too). But...I stand behind the NCLEX entrance exam.
That's my humble opinion.