Hmmm very difficult. There would not be trust anymore. I can understand Charles wanting to see his grandchildren and Harry wanting contact before Charles dies. Just leave Meaghan at home. Is Harry sorry or is this another publicity stunt.
Stealing anything is wrong.
The prices you pay for your shopping pay for staff wages from checkout to cleaners, truck drivers, farmers, manufacturers and their staff etc etc.
You can live cheaply just need to plan