If high school students can get into UOP and into their 5-year or 6-year guaranteed track (2 years prepharm or 3 years prepharm + 3 years pharmacy program), I would recommend doing that. (or something of the sort). You do not get a BS/BA, unless you do the 7-year track... but TBH, a Bachelor's is not necessary if you go to pharmacy school (and a waste of time if pharmacy is REALLY what the student wants to do).
Otherwise, they can do their 2 year prerequisite coursework at a community college or at any university (university seems more prestigious, but I don't have any background on this... and do not know if it truly matters to pharmacy schools) and apply to pharmacy school in their 2nd year/3rd year of college.
If the student wants to get a Bachelor's, I think a traditional university & applying to pharmacy school during senior year is the best route. A traditional university will offer them more variation in coursework and allow them to break out of pharmacy if they decide later that this is not what they want to do + it is cheaper (if you go to a public school).