El Gato
Villarato!
Gavi needs mentoring at this age. Barca is by far his single opportunity to be a starter and gain experience. A transfer to Liverpool, PSG or City will bring one thing - more money and mostly bench time for the foreseeable future. He is not what he think he is, yet - world class.
Why would he be benched when both managers dont shy away from giving youth a fair amount of game time and often trust them in bigger fixtures?
Klopp has midfielders that are either unremarkable (Keita) or ageing (Hendo, Milner leaving(?), Thiago has/had injuries).
There's no certainty to it being a worse move and could go either way.
If gets on with Xavi less well then can understand he could prefer to go and earn more in the process too.
Can't remember how old Pique was when left, 18? Similar for Fabregas IIRC
Could well come back after having had that experience easy