I third that going in undecided and trying to transfer into engineering can be extremely difficult at many schools. Do your due diligence when researching the college list. (And that isn’t “minoring” in engineering).
One of the questions to ask is the difficulty of undecided students getting the necessary first year engineering classes they would need to be able to successfully switch into engineering. At D’s school, engineering students have priority in scheduling and courses can quickly get closed out to others. Without those foundational courses, which have to be taken on campus, students can’t transfer. Some students will take them over the summer but obviously that will add to your costs.