If you lived in a European country as a military brat, you lived on post
But anyway, let me reiterate. English is taught as a second language in all of those countries. It's a requirement. Why? Because English is the language of MONEY.
Also, If a Danish guy is doing business with a Swedish guy, or a Dutch guy, or a French guy- guess which language they speak. ENGLISH.
Of course they speak their own language. It they also speak English because it benefits them to do so.
Since you're a military brat though, I'm sure you ventured out into the nearby city more than once. How hard was it to find an English speaker for directions? I'm sure it was easy. Why do I know this? Because I was raised a military brat too, and I travel to Europe for work often NOW. They HAVE to speak English to me in every one of those countries in order to do business with me. I don't speak any of their languages and I skip through every city without a care.
Also, the Irish speak English and that isn't their first language. Gaelic(irish) is taught to them in school but most of the young people don't k ow it.
I lived off post...blah blah blah.....learn a new language to better yourself yes. Dont let the Chinks push you out the job market in your own country like they have done in many African countries leaving the locals with shit and low wages....period not going to debate this shit..sick of Blacks being the doormat of the world