Ok, but imagine that while Charlie is in Romania, he meets this cute guy named Rolf, who is the grandson of Newt Scamander, and it goes like this:
Charlie: WAIT, You're the grandson of THE Newt Scamander?!?!?!?
Rolf: ....Yeah?
Charlie: THE Newt Scamander?! The world famous magizoologist and the author of Magic Beats And Where To Find Them- Newt Scamander?!
Rolf: ...yes. That's my grandpa.
Charlie: Can I please meet him??????
And imagine if Rolf told Newt about Charlie.
Newt: You know Charlie Weasley? One of the best dragon tamers there are?
Rolf: Yes, I do. He wants to meet you.
Newt: Tell him he's always welcome to come around, I would love to meet him.
Newt Scamander and Charlie Wesley meet, and they happily talk about dragons over tea and biscuits.