Yes Soutra, coincidentally I do already 'offer' my services to a well known registered charity. I do home visits to people after hospital discharge (all ages, not just the elderly), chaperoning hospital/doctor appointments, transport, and shopping. However these people are vulnerable and this service is provided professionally and unconditionally. I could not carry this out with an ulterior motive, looking for an elderly person who could be a substitute grandparent! I was brought up with the motto 'you don't give to receive'. When working or volunteering with registered charities there are codes of conduct and very strict boundaries.
Very valid point Charleygirl about the car insurance. The organisation I volunteer for has details of my car insurance and I have checked with my insurance company that I'm covered for what I do. I've had a CRB check and carried out all the necessary training for the role albeit a voluntary one. It's a shame that your GP surgery failed to set up the transport scheme for patients, perhaps they could enlist the help of a large well known charity. The charities often have an 'agreement' with insurance companies regarding car insurance for their volunteers. Hope this helps xx