My mom never learned to ride a bike. In her 40's we used my sister's bike to teach her. She learned, but was fearful each and every time she was on it, and eventually she quit. Don't let that be you!
You can do it and who cares what others think anyway? We taught mom right out on the street in front of the house. Come to find out, two of our neighbors never rode bikes and were soon learning, all because they saw my mom taking the reins.