"I've traveled to EU a lot and even in a country like France I had zero problems getting by."
Only if you travel along established tourist routes. Go to a local marketplace or try to ask for directions in a smaller town and you will find it hard in many EU countries. Yes, in Northern countries even most elders speak English fluently, but in South I have had many situations where finding a single English speaking person was a challenge (notably in Greece and Italy).
I don't believe it. I live in Croatia and everybody under 30 speaks English beautifully. Almost everybody under 40 speaks functional English. Most people under 50 understand commercial English, even if their grammar is shit.
You probably didn't struggle to find an English-speaking person. You struggled to find a person willing to speak English with you. That's a subtle, but important, difference.
Most of my neighbors pretend not to understand English around tourists because it saves them enormous hassle. At first, I was appalled when I realized this. Now, I confess to doing it myself. It gets exhausting answering the same questions from unresourceful tourists over and over again.
Locals don't want to be your tour guide. They just want to enjoy their coffee in peace.
Only if you travel along established tourist routes. Go to a local marketplace or try to ask for directions in a smaller town and you will find it hard in many EU countries. Yes, in Northern countries even most elders speak English fluently, but in South I have had many situations where finding a single English speaking person was a challenge (notably in Greece and Italy).