This is America! Everyone Learn English

"This is America. Why doesn't everyone just learn English?" Working for a government agency that is required by law to provide voting materials in 4 languages besides English to voters who are "supposed" to know English already because they are citizens, I have heard this question more times than I can shake a stick at (more times than at which I can shake a stick? ah, forget it). I'm still not sure whether or not it's rhetorical, but I do have a few "feel good" answers for those agitated non-non-English-speaking voters. Yesterday, I found another: "Why don't you?" I took this picture at my condo complex, which is governed by a board of older, whiter people. Signs around this complex are always a bit lacking, but this one was classic. My wife told me I shouldn't laugh so much about it (maybe our kids will end up having poor English), but I couldn't help it. One's whole life in America and English is still evasive. It happens to me, too, as I'm sure you'll see by reading my other posts. Please let me know when my English leaves much to be desired. I'll be sure to correct my English must be corrected.