Questions asking for advice on a specific choice, such as what job to take or what skills to learn, are off-topic as the answers are unlikely to be useful for anyone else, and are often primarily opinion-based. Instead of asking which decision to make, try asking how to make the decision, or more specific details about one element of the decision.
Keeping a little bit of the breadth I think is helpful, as otherwise people will think it only applies to the listed points (yes, 'etc.' is there, but giving some clarification on what 'etc.' means is useful).
I also think that the 'rarely useful to anyone else' is less important than the 'opinion based' side: we answer all sorts of questions that wouldn't necessarily be very useful for other people on StackExchange sites, but in these cases it's really that there is not a good answer possible: it comes down to opinion and preference.