Originally posted by Wasp Wandering around the in the wilderness by yourself seems like a bad idea, regardless of one's age.
I don't think that's necessarily so...
It doesn't really matter what environment you're in - the wilderness, out at sea, up in the air, walking around a big city... you consider the risks, look for ways to prepare for and/or mitigate them and - for those you can't - make a conscious decision as to whether you're prepared to accept them and the possible consequences.
I live pretty close to some very elevated, rural, sparsely-populated and - in certain conditions - quite cut-off areas. Driving through them alone, I could easily get stuck in snow, break down, hit an animal and incapacitate my car, leave the road and end up stuck, feel unwell and need a doctor or paramedic etc. I wouldn't consider driving through those areas (especially in winter) unless I had my fully-charged cell phone, warm clothing, energy bars and water, basic first aid kit, prescription meds, my pocket knife, window-breaker and seat-belt cutter, tyre compressor and checked spare wheel with me (in fact, I carry most of that stuff in the car at all times anyway). Such precautions mitigate the most obvious risks, so I'm generally happy to make those journies.
I would never advocate disregard for one's personal safety, but nor would I advocate wrapping one's self in cotton wool. If we assess the risks and take suitable precautions, few situations should be "out of bounds", IMHO - so long as we're not silly about it...