I'll tell you why. Because it's not about 'glorifying the history'. No. It's about getting outside foocking recognition. 'Hey, look! There are some filthy Swedish peasants talking about our superior historical heritage, like the way it should be!'. Nobody actually gives a foock about history itself, it's all about 'WOOOOOOO WE'RE BEING NOTICED
Swedish peasants? lol. Poles are the peasants, not the Swedes
Like I said, Polish patriots should be preparing their children to speak a relevant foreign language now. English will hardly be spoken in the next ten to twenty years and that is the amount of time it takes to become truly fluent in a language.
Are you crazy? English isn't going anywhere. Its here to stay, and it will be just as relevant, if not more relevant in the future. English, French, Spanish are far more important and useful to learn than Arabic or Mandarin. And it doesn't take 20 years to become fluent in a language. My parents went from speaking zero English, to speaking fluently in around 3-4 years. If it takes you 20 years to speak a new language fluently, or near fluent, you aren't trying hard enough.