Gabriel Romo remembers summers growing up on the Point Reyes peninsula as a time of boundless adventure: catching frogs, swimming in Tomales Bay, running barefoot through rippling grassland, and, on fogless nights, lying rapt under the stars. Days stretched before him and his older brother, Eduardo, as they roamed the landscape with the kind of freedom only childhood offers. Without cell service or wifi, their parents didn’t need to ask twice for them to stay…