My D is a biology major with a double minor ( being vague on purpose). She entered college with the intention of getting her Ph.D. or going to med school. After several semesters of research and shadowing, she has found that her interests are changing and expanding. She does not love lab work and did not love shadowing… yet she still loves science ( among other things).
She is still in undergrad… and has been offered 2 gap year positions ( needs to choose). Following this position… it looks like she will be applying to dual degree grad programs. PM me if you want.
Biology is not a useless major… but it does depend on the student.