A language is of course much more than knowing lots of words and grammar. I learn Latin languages, but I also get to know people I would never have met in person or on-line, I get to know about things I didn't know existed, I listen to songs I would never have listened to if I hadn't been learning languages. Latin languages have a different way of describing the past, which we don't have in German languages. I'm still not certain about this even though I have been learning Latin languages for many years.
If learning a language had only been about learning words and grammar, I would have preferred to do something else.