Age is just a number that represents age.
Sometimes you gotta make an egg to break an omelette. Look, the point is it couldn’t have been that important if you’re worried about whether some old Viking figure of speech still makes sense in today’s world.
Well, farewell. I hope you have a wonderful future together. See you in the past, as soon as this good-for-nothing time machine stops turning all my gerbils into useless gold!