It is not difficult to acquire transferable skills during an education in music. Music schools and colleges alike provide opportunities to do outreach. There are many volunteer and internship opportunities at music organizations as well. Some skills to pick up might include fundraising, donor management, grant prospecting and writing, budgeting, public speaking, website design, writing newsletters, teaching…all of which are transferable to jobs outside of music (or non-profits, agencies, other organizations within music.)
I know musicians who also run festivals or are the creative directors of a chamber orchestra. And musicians who work in other fields- one I know works for Sesame Street, another went into linguistics, and a third did grad work in Medieval Studies and is in academia. And I know several doctors who majored in music.
If young person loves music, it seems to me that it is worthwhile to spend undergrad years studying it. The options after that are many and varied. An orchestra chair is no longer the only goal. The Internet, technology, the gig economy (freelancing) and increased entrepreneurialism have all changed the picture quite a bit.