Templars were the original international bankers and the legend was they found something of import during the Crusades in Jerusalem. I think by claiming and identifying with the title is a way to "capture" that lost historical power. Which is why the Templars is an order within Freemasonry. All Templars are Mason, not all Masons are Templars.
There is somewhat of a revival in some Grand Lodges. A lot of young men that had grandfathers in the Blue Lodges are finding it appealing to have that brotherhood and networking. But it's not widespread. For the most part, in my region, most lodges are older men. Prince Hall Mason lodges, OTOH, always have young men coming in.
I do not know about other Grand Lodges in other countries. Perhaps someone can share knowledge as to what kind of age composition we're looking at in other countries?