I would say this depends on the country. You can obviously survive without learning the language but you are definitely better off learning it, particularly if

I would say this depends on the country. You can obviously survive without learning the language but you are definitely better off learning it, particularly if you want to integrate with locals. It’s also country dependent. Somewhere like the Netherlands or one of the Nordics where everyone speaks fluent English you’ll probably be ok not learning but if you tried just speaking English in France they’ll consider you a massive arsehole.