I ride alone all the time and somewhat prefer it, especially when I'm trying to work on something. I always have a cellphone though and I'm a touch older that the OP.
The first couple times I rode alone, I was paranoid and scared because of all the years people have been telling me not to. It's something I eased into and really enjoy though.
It's always nice to let someone know where you are, but that's sometimes not an option for me so I just carry the cell phone Posted via Mobile Device