What makes people basically afraid of being a musician?

I’d like to ask this curious question to all of you: why most people (& perhaps including you guys) usually/often are afraid to pursue a career as a Musician?

what do you guys think?

is it mainly because they feel like they’re lacking talent, or the “it” factor to succeed?

or feel lacking passion, or persistence to really really strive for it, ‘till you succeed? (but isn’t it the same as other kind of professions?)

or is it because people basically afraid of the overwhelming expectatations they’ll be getting? (from public, fans, spotlight, media, labels, etc etc)

or is it mainly because of the amount of spotlight they’ll be getting, and lack of privacy?

or is it mainly because of the fear of lack of money, for living needs?

or is it mainly because it’s not according to what most common society (ie: parents, family, relatives, friends) wants you to do? they think it’s just a stupid even “not real” career?

or other things?

These all might seem ‘negative’ things that held people back from pursuing full-time career in music,
but
I wonder if people have actually thought about the ‘positive’ things they’ll be getting at, like:
– the touch of human soul. consider that this is such a benevolent task to do, when you’re a musician.
– some musician friends of mine often told me that being a ‘true’ musician is not about money, but it’s about “a good karma”. very abstract indeed..
– seeing those smiles in people’s faces = priceless ?
– inspiring people

for this thread, i’m specifically talking about musician (although the same could be applied to any other artistic field/career).

Please share your thoughts! :)