Actually I tihnk you are right in practice except in cases where there is an insurable interest - spouse, work partner etc.
"In most cases, it's only possible to buy life insurance for your spouse or civil partner, although you may be able to do so for someone else by proving that an 'insurable interest' exists on your part were this individual to pass away. In simple terms, this means reasonably demonstrating that you would struggle financially if the insured person were to die.
What is Insurable Interest?
Insurable interest is a legal requirement for all insurance policies at the time the policy is taken out. The Economic Times defines insurable interest as 'the reasonable concern of a person to obtain insurance for any individual or property against unforeseen events such as death and losses'.
In UK law, insurable interest extends to the life of spouses and civil partners, but not between other immediate family members including:
Parents and children
Children and parents
Siblings
Cohabiting couples
Although the English and Scottish Law Commissions have tried to clear up this complex law by increasing the limits of insurable interest, it's currently not possible to buy life insurance for anybody other than your spouse or civil partner in England, Wales and Northern Ireland. Scotland is an exception, where children have an interest in the lives of their parents if they have an obligation to provide maintenance. Another exception is where two friends purchase a property together. They usually have an insurable interest equivalent to the amount of the mortgage.
Deed of Assignment
One way around this issue is for people to assign their policy to someone else. A deed of assignment is a legal arrangement that transfers the ownership of a life insurance policy from the existing owner to a named beneficiary. As with all transactions of this nature, both parties need to be present to ensure the document conveys what it needs to.
The law assumes that the person buying life insurance would only name a beneficiary within their policy if they wanted to protect them financially. There's usually no requirement for any beneficiary to prove insurable interest at the time the deed of assignment is completed.
Other options include adding provisions in a will or placing the policy in a trust.
As these options are likely to have different tax implications, you should always seek advice from your legal adviser."