The real moral of Grease

I'll just post what I said in another thread:

But, aren't we all like that in some way? We're always trying to change and please, fit in, changing this, changing that, we are people pleasers. Danny tried to change, Sandy tried to change, but it was "just you that I want" in the end. Sometimes you have to go through all the bs, what your friends think, what others might think, what you might think the other might want in a relationship, perceived ideas that you have to be this, that or the other in order for the other person to like and accept you. Also, their relationship was a young one, they were young, but by the end of the film, again, YOU are the one that I want, you alone. But, that doesn't mean there isn't some much needed changes. "You better shape up, 'cause I need a man." Danny the greaser would be like what we call a thug today, even a gang member. You need to grow up, and be a man if you want to be with me. Stability.

I always felt Sandi dressed like she did in the end with the idea, "Fine, I'll give you what want and MAYBE THEN you won't be so embarrassed to be seen with me. If this is what you want, I'll give it to you to wake you up a bit. Also, maybe I have been a bit of a prude, maybe I need a change in style, really, maybe I need to change things up in my life and relax some." And boy, did she! And this was all for a bit of fun in the film to give Sandi the prude some VA-VA-VA-VOOOM, sex appeal. Nothing wrong with changing your style, dressing sexy, and change isn't always bad, it got Danny's attention, he was shocked by the change, even turned on, but ultimately they both knew that they loved each other, they were madly in love, that they were meant for each other.

And honestly, they BOTH needed some changes. I've always seen this film as "that's how relationships go," they have their bends, their turns, their ups and downs, their flaws, things have to be figured out when two people come together. That's kind of the way it goes.