The length of your handlebar stem will give you either more reach or more of an upright feel. If the handlebars are too high, too low, too close, or too far away, you may have neck, shoulder, back, and hand pain. You should be able to comfortably use all the positions on the handlebars and bend your elbows while riding.
Remember that it is important to fit the bike to the rider not the other way around. As we age, we
are less flexible so you will be more comfortable in a more upright position. Consider a professional bike fit to improve comfort and performance.