[kccqzy]

That's not a deeper lesson. A deeper lesson is to understand where the pointer points to and then decide accordingly.

[Beltalowda]

That is pretty much what I said, except phrased different.

[throwaway894345]

It sounded to me like you were saying "avoid pointers by default" (bad advice IMO) rather than "if it matters, verify whether the pointer escapes" (good advice IMO).