SAN ANTONIO — Juana Castañeda is grateful that her granddaughter’s elementary school, Carvajal Elementary, is across the street from her home.
“That’s what I can do, just (go) right there and do the rest,” Castañeda said, pointing to her sidewalk.
Her mobility is limited after suffering a stroke years ago, but she walks as far as she can to make sure her granddaughter gets home safe…