Can my son's friend legally teach him to drive using his car?

My son is working from home during lockdown, so is his flatmate. They have a bit more time available without their commutes so his flatmate has offered to take my son for practice drives. Is this allowed?

Someone I know asked me for driving lessons in a car he purchased and had an accident - will it have an impact on my insurance?

Someone who I know asked me for driving lessons in a car he purchased. He had learner driver insurance and I was a named driver on the policy. He had an accident, hitting another car and writing both vehicles...

I'm in my 60s and getting ready to take my test - which car would you recommend for me?

I'm in my late 60s and getting ready to take my test for the first time in a few months. Which car would you recommend for me to buy please?