It looks perfectly doable. Wear something bright and reflective, and get one or more nice taillights visible in daylight:
http://www.amazon.com/Portland-Design-Works-Danger-Light/dp/B00435IPFKhttp://www.amazon.com/Portland-Design-Works-Radbot-Light/dp/B0030BS30K/ref=pd_sbs_sg_3In all honesty, though, your area wasn't designed for anything other than one-car-per-person living: there are no sidewalks, and even if there were, there's nothing within walking distance. If you're looking into making a long-term lifestyle out of biking and walking, it would make sense to live in a neighborhood designed to make it possible, generally those built before World War II with streets with sidewalks on a grid pattern, and on a bus route (those were generally originally streetcar routes) along a street full of useful shops. Those neighborhoods were built for families with one or zero cars, and often still function perfectly well for folks living like that.
It looks like there are several suitable neighborhoods in Cincinnati, and several of the inner ring suburbs also look doable:
http://www.walkscore.com/OH/CincinnatiObivously, there are questions of education, safety, and other factors, but remember that the leading cause of death for those age 5-34 is motor vehicle accidents:
http://www.cdc.gov/injury/overview/data.htmlMoving to a place where your child can avoid motor vehicles while growing up, especially when 16+ and experimenting with automobiles and likely alcohol, is far more important for safety than mainstream culture makes it out to be.