In reply to UKC/UKH Gear:
Another fine report, Edith.
Of course, when I was that age, we only had hand-me-down rucksacks. I was often charged with carrying a 55L adult bag. It had to be that big to contain an eight-person, home-made polythene survival tent.
Fortunately, it wasn't heavy, but I soon figured out that onlookers didn't know that, so there was ample opportunity for dramatic leaning forward and gasping uphill as if this bag, almost bigger than me, were filled with rocks.
I expect the NSPCC got a few worried calls.