If falling is really a worry for you there are options. Recumbents (both bicycles and tricycles) certainly get you a lot close to the ground, but also tricycles

If falling is really a worry for you there are options. Recumbents (both bicycles and tricycles) certainly get you a lot close to the ground, but also tricycles like this one: https://www.radpowerbikes.com/products/radtrike-electric-tricycle https://www.radpowerbikes.com/products/radtrike-electric-tri... which keeps you up and easy to see (in seattle every year or two it seems like some poor sod get's run over by a car that can't see them on a recumbent).