Where stopping lang is a problem is aiming for tippy tops and dropping after soph year because they don’t like it or don’t “want to” continue or really, really want to take some elective that is not only outside the cores, but often not academic.
The answer depends on the context. WIll he be taking senior year college DE math courses and might have a scheduling conflict? Then, ok, it’s a judgment call and I think we all could agree the math trumps.
But what is the plan that leads to this question?