lynehamrose I thought I had answered your question with - I think swimming alone is a risk - obviously an adult can make up their own mind.
At to the what age question - I think MadamDeathSquare has nailed that one in her response.
I would not swim alone - I suffered debilitating cramp once in a deep pool in my early 20's and I was really glad I had other people around me but I suppose it depends on a whole range of scenarios and again obviously an adult can make up their own mind.
<a class="break-all" href="http://webarchive.nationalarchives.gov.uk/+/www.berr.gov.uk/files/file21496.pdf" rel="nofollow" target="_blank">BERR Archives
Pages 11 ? 14 make incredibly sad reading as does hearing of others on this thread who have drowned.

Pages 11-14 as this outlines the risks better than what i have tried to outline on this thread and is still every bit as relevant today as so many drownings are preventable.
Here are some Australian statistics
Sadly, drowning in people over 55 now represents a third of all drowning deaths in Aus.
I prefer to swim with someone else anyway or near others - with 60 odd million people in the UK that is a pretty common scenario. I have mentioned that I was brought up to never swim alone, and I have been mocked for this - and so far lived a happy and independent life - but as 280169 said - each to their own.
Squeaky - Australia has tried very hard to reduce drownings and near drowning. NZ (a much smaller country population wise) has double the amount of deaths per capita than Australia.
Your point about only 11.7% of homes in Australia having pools is very interesting, since there are a higher concentration of pools in major cities in Australia. You can read more in the link that I have posted but I?ll quote a relevant section: ?Drowning is a very significant issue for regional Australians with over 50% of all drowning deaths happening outside of major cities. Royal Life Saving calls for the upgrading of regional aquatic facilities to ensure that people living in rural Australia have access to the same levels of swimming and water safety education as those living in the cities.?
And more ? I have bolded the text -
Royal Life Saving says children - particularly those under 5 years - are the most vulnerable to drowning. They highlight that child drowning is preventable and that the Royal Life Saving Keep Watch Program (www.keepwatch.com.au) offers critical actions to highlight that close constant and focused supervision is important plus restricting children's access to water; water awareness and ensuring people have up-to-date resuscitation skills. Royal Life Saving reminds all Australians to regularly check pool fences and says improved pool fencing legislation is needed.

Anyhow, this is my last post and I hope everyone and their families enjoy their swimming safely this summer.