Generations! Yes, its very nice to have a grandpa or a great grandpa.
They will tell you all about the things in those days, even if you may find it hard to believe. The comic above shows how people of different generations look at any unidentified thing on the sky. We will call it a ‘UFO‘ but the previous generation may call it ‘Fairies’, thanks to a lot of fairy stories spread during those age. The generation even before that will call them ‘Dragons’.
So we can clearly see here the difference between different generations. They differ, to a large extent, in their views.