dave........that is a very personally pointed question and a very good one.
Why do you want to rent?
If you own your house and your pensions provide the lifestyle that you require...............then why rent?
However if want to sell you house, to maintain a lifestyle then you have 3 options:
1) Sell and rent.
2) Equity release
3) Downsize.
I will only comment on 1)....selling and renting.
If you asked that question to people on the continent, they would say "why hang on to £250,000 worth of property which you have worked hard to achieve, to leave to somebody else when you die?
Property is only an investment, when you sell it.
The majority of folks on the continent....rent.
mikey/sunny Dave.....you seem to forget that dave will sell and invest.....bringing in 1or perhaps 2% interest, that is approximately £4,000 a year....not enough to cover his rent but a significant help.
Renting is not necessarily a commercial venture but one of choice depending upon what is wanted in one's life.