I've been camping a few times, mostly as a Girl Guide, and once with some friends. Like Anita, as a guide we put up our own tents, made bedding racks etc. I enjoyed all that, and I especially enjoyed cooking over a wood fire. I also enjoyed hammering in the tent pegs, but of course there was a large group of us to share all those tasks, it probably wouldn't have been quite as enjoyable if there had only been 2 or 3 of us to do everything. Washing was done in a small canvas wash tent, in a bowl perched into a tripod of sticks (which we'd made ourselves). I think it would have just been our faces, and possibly under arms - there certainly weren't any shower facilities on the short weekend camps. The longest I went away for was a week's camp. It was a large campsite, and I know there was a big toilet block, although we used our own chemical toilets most of the time. There may have been communal showers too, and as we were there for a week, I wonder if we would have used them, but I can't remember. I think that was before my parents installed a shower in their house, so I would have thought I would have remembered the 'novelty' of using a shower somewhere though.
We wouldn't have worried about washing clothes. I can't remember how long the Famous Five camped for, but if it wasn't for more than a week, I expect they would have worn the same clothes the whole time.
I think the Famous Five normally got fresh food every day from a convenient nearby farm - I would love to know if that was the norm back then, to turn up at a local farm and buy bread, milk, cheese etc or a bit of poetic licence on Enid's part.
I wouldn't go camping now, the last time I went I was cold all the time and hardly slept at night. I don't sleep very well at the best of times, and even if I stay somewhere with a 'proper' bed, it normally takes me a couple of nights before I can get to sleep at a reasonable time. I think I've also got a bit 'soft' in my old age as I hate the idea of not being able to wash my hands at the turn of a tap, that would really stress me out and as for having to stagger across a muddy field to the nearest toilets in the middle of the night.......!!!! Especially as I wouldn't want to go out in my nightclothes, so by the time I'd got myself dressed at say 2.00am, found a torch, used the facilities, got back to the tent, undressed again, and with my difficulty sleeping - I'd probably still be awake come 5.00am!
I still like the 'romantic' idea of camping though, and last year on a very hot summer's day, when on a walk we passed through a really lovely camp site in the West Country - the site had amazing views, and each pitch had it's own small fire pit. For a moment I was tempted to rush out and buy and tent and book us in for a night or two.
However the reality would probably be it would rain half the time.
. Sleeping will recharge the energy and the next day can be enjoyed to the fullest again.
I love hiking and being outdoors, but I won't go anywhere without having a hotel room or B&B booked beforehand for every night. I need a proper bed and a proper bathroom — and as I usually travel on my own, it's a straight-out matter of personal safety (especially as a female traveller) for me to always have a safe and secure room for the night. So that's how it is for me. I am planning an extended hike in Cornwall for 10 days this July and I have all the accommodation booked already!! 
