Too old? My dad's in his 60s and is still a metalhead. Though he prefers a different set of bands admittedly. Nightwish for example.
There's metal for everyone though, you just have to find your niche.
As for the Dragonland song above, the entire album tells a story, if you want to seek it out at some point. That seems to be one niche I've fallen into, between that album, the ABex/AByss duology from Unleash the Archers, the Gloryhammer/Angus McSix sagas, and so on.
Another one from the same album: