Since most do not take the required courses, they cannot make this transfer.
They do, however, finish their philosophy degree, and then go and get a job in the tech or finance sectors. sometimes after doing some retraining.
However, if their focus was on Logic, it is not a large leap from that to mathematical logic. A person with an understanding of formal logic can do pretty well in all sorts of tech fields.
Alternatively, they can get a high paying corporate job through family connections, and will pay for their kids’ education with that and with the generational wealth that they will inherit.
I wonder, though, what they will say in 30 years when their kid says “Mom, Dad, I want to major in philosophy”.