All I'm saying is that it's an origin story and I'm tired of origin stories.
Origin stories were far less common decades ago. There were special cases like Tarzan (you do wonder how he got into the jungle) or Robin the Boy Wonder and occasionally a movie might use it for special effect --the Harmonica character in Once Upon A Time In The West comes to mind.
I notice that characters in a lot of media in recent times will be more confessional and open up about their feelings too. They express fears and doubts or they psycho-analyze a lot more than you find 30-50 years ago. As opposed to having character traits revealed through action or situational dialogue alone.
One might even suggest that this origin trend is a form of character deconstruction or infantilization. It does seem to deny or subtract from the maturity of characters--Darth Vader and Indiana Jones come to mind.
I am not saying that having parents or some information about a character's childhood is necessarily a bad thing--it was used to good effect in Star Trek when we learn about Spock's childhood via his parents' comments--but that is different from seeing it for ourselves or having flashbacks.
I notice the show Reacher--which I have not seen but I read up on it and sure enough--there's lot of flashbacks to the character's childhood and mentoring.
It made sense in Kung Fu because he has a special fighting technique and it's an exotic concept, you want to know about it--- but do we really need to learn what childhood Sherlock Holmes or Dracula or Columbo had by detailed description or flashbacks?
Is it really that interesting to know (especially since the creator of the character is not involved so it is never going to feel genuine anyway)?
In the case of a woman with one arm in the wastelands--there is some reason to be curious how she came to be--I can think fo a few cases where a woman warrior is given a back story to explain how she ends up in combat or piracy but that's not always the case either. A line of dialogue can work at least as effectively as a flashback can too.
Emphasis on prequels can also dilute dramatic suspense since you know the character's future---or--if they decide to deviate from the known story--can make it less suspenseful since it becomes a parallel universe where nothing is set in stone.
This was a topic in a Critical Drinker podcast recently-the Multiverse Curse--he pointed out that the multi-universe stories were making the characters trivial since nothing--even death--was permanent.
I know that I am totally bored with Batman--too much Batman for me.
There's just too many Batmans.