I really can't understand why people don't understand this. Moving countries, uprooting your family, learning another language, leaving friends, and your home. It's huge for anyone.
Bale managed very well and didn't bother learning the lingo.
These aren't normal people, they don't need to fit in as they end up very wealthy and can live in a bubble in any country. Dybala has already moved continents, moving to another European country wouldn't be a major issue for him. Plus he'd have a few fellow country men for company.