These insights may be trivial, but still important to experience first hand and early in life (let me highlight that I was never an excellent or successful musician, though):

* Having solid basic skills in a profession is crucial; in contrast, almost nobody really needs a virtuoso. Practically, nobody needs a rock star or diva.

* Always be reliable, even if others are not (don't pay back unreliability by being not reliable yourself). Be the one who is on time and does his homework. (In contrast, in school I learned that what technicality qualifies as homework often does not pay off.)

* Continuity is key to get a decent chance to succeed (again, in contrast school taught me that you can make things up as you go along, as long as you are somewhat talented).

To relate to the topic: the problem with many video games is that reliability and continuity come effortless. You simply need to go online and play. In contrast, as an amateur musician, I had to make sure I have the right gear, plan the transport without owning a car, make sure I can get into a rehearsal room regularly, find the right people to play with (the ones who have the connections that are needed to actually get a gig) et cetera.