A direct admit program does not mean you will be able to stay in the program. Many colleges use it as a weed out. If you don’t make the grades, you won’t remain in program. Programs like Ohio State you have to apply to get in and might not, as it is competitive, but usually once your are in the chances are good you will stay in.
Always have a back up plan. Since everyone is coming from different high school backgrounds it is comparing apples to oranges when doing direct admit. Getting admitted to a pre program, then applying and getting accepted to program after a year is a better indication that you fit the program IMO.
I speak from experience of having to apply to a professional program at Ohio State and getting accepted and graduated in that program (not nursing, but a program more competitive). But i also had a back up plan if i did not get accepted. It is nerve racking, but it made me work hard and not party!