No, I don't do that, if I shop by myself I just make it a point to carry items that I can handle, or I ask a family member to accompany me so that the load will be equally distributed.
I suppose none of us know how we are going to be when we get older. People pay others to walk their dogs so why not carry shopping. I think I would expect someone to do my shopping as well as carry the bags if I was going to pay them. We do have a service where a shop will deliver our goods for us but it's not free. When I feel I am no longer able to do my own shopping I will probably use this service.