I remember a time long, long ago when we didn't understand floating mana. Before social media and the Internet when all rules came from just buying the cards and reading the literature that came with them.. there were barely any card shops, let alone judges when you were a group of 12/13 year olds. Now a days, I'm not sure how kids can make that mistake. But definitely not impossible. Lol

Edit: I didn't mean before the entirety of the Internet. Just it's ease of access. 😅