Polyglots are amazing but have you ever seen two speak to each other in 21 languages?
It gets a little awkward in parts but regardless, you have two people who speak 21 languages between them. I can barely speak English sometimes. At the moment, I’m learning Portuguese with Spanish and French on the side. I love polyglots and some of my favourite people speak multiple languages. I better brush up on meu português.
(P.S. I recommend learning a language using Duolingo)