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This is an interesting debate...
The thing is, personal taste must be defined by who you are, and who you are is at least partially determined by your roles in society. Being a parent, I think, is one of the most life-changing aspects of human existence, and it can have a big effect in how you look at things. All kinds of things. "Things" being such a great, descriptive word and all.
My point is, some people's tastes change more than others. If I had seen Trainspotting at any other time than in the first few months of my daughter's life, I don't believe I would have freaked out and started crying like a maniac at that one scene (you know the one I mean). My husband remarked on that, too. So, being a mother changed me, to an extent--changed who I am. I never know for sure, but I do know that it surprised the hell out of me to react so strongly to a scene that was comparable to others I had seen of the same nature (and not reacted to... I feel like I'm repeating myself, so I'll stop).
It's all subjective, to be sure... but then again, so is your personality.
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