Making a Will looks after you when you die but what about the alternative circumstance that you might lose Mental Capacity in your Lifetime. If you have not written down in a Legal Document who you want to sign and look after you then your accounts will be frozen until the Office of the Public Guardian and the Court of Protection can decide.
People who install satellite dishes for a living or race racehorses are obviously at more risk than others. An LPA is analogous to Life Insurance. You cannot make a Lasting Power of Attorney one second before you fall off a ladder, have a stroke or pass through the windscreen of your car.
There is a second type of Lasting Power of Attorney for Health and Welfare.