Your experience here is a bit anecdotal and might say a bit about what your frame of reference for what it means to be "hispanic". But of course, I don't know

Your experience here is a bit anecdotal and might say a bit about what your frame of reference for what it means to be "hispanic". But of course, I don't know you, so feel free to ignore my point :D However, if you walk around the (objectively affluent) La Cantera mall in San Antonio, you'll hear maybe 1/3 of the conversations in Spanish. About 30% of the folks in Texas speak Spanish, so if you're in Texas you're in a hispanic area by definition....what you're describing are areas where people are or aren't willing to pander to folks who aren't bilingual. I don't know if that describes a line between affluence and poverty though. It's possible, though I'm not sure if I believe it.