People don’t really ever stop learning a language! It’s a continual

process throughout life. Yes, at one point most people reach what they might consider a “peak”, but there are always phrases and words that are unknown, even to the wiser folks who have been learning English for decades.
I have been teaching English for several years, and I love helping people improve their lives! Learning also means living and this is what I try to get across to my students. Never stop learning, because life never stops teaching!