In my getting-a-bit-long life, I've always loved trying to learn languages.
When I was a youth, you could do conversational language evening courses, usually for free. They've completely disappeared round here. Instead of evening classes on car maintenance, cooking, French and Spanish, you can do bottom-rung vocational stuff if you're lucky.
Everything's become about squeezing the last drop of blood out of the working class. Sorry, feeling that way out today.
More productively, I agree with you and I wish we had access to effective language learning in adult education. I'd jump at the chance to learn Portuguese, French, German, Dutch, Swedish, Japanese, at night school. Preferably all at once!