No Escape
Forget all these mistakes we’ve already covered here. Even if Rose had met Jack on board the Titanic, what were the two’s chances of survival, really? They had to escape the third class floor and pass through several locked gates in order to do so, while risking their lives.
We know that most people weren’t able to do that, and as much as it saddens us to say this – Rose and Jack didn’t really have a realistic chance of making it to the upper deck.