I'm going to hell for sure, so I might as well question everything?

[kılıç_mehmet]

That sounds like you'd be making personal observations of her character then, not of the culture she was raised in.

As far as I can tell, Christians don't really have a "culture" anymore, if they ever did. Maybe in the past, pre-Schism, you could argue for it, but no way these days.

What I can say is that personal traits and characteristics are influenced by the culture that you live in.
My personal characteristics are in accordance with my culture.
If I would act against them, I'd act against myself.
It doesn't matter if I'm faithful, or not. I still go and slaughter the sheep of my relatives during Kurban, and attend family dinners during Ramazan.
I still turn off the music while a person is praying in the same room as me.
I do not smoke before a person that fasts at that day.
Not that I'll face consequences for doing the opposite, I'm simply adhering to certain things that culturally, has an impact on who I am.
I hope I could have explained myself.