If he is fit and well why not?
There are many ways to go camping these days and they are by no means all 'roughing it' in a leaky tent in a boggy field with no toilets!
Most camping sites nowadays have good shower blocks, often laundomats, shops and clubhouses.
Some have caravans to rent or even ready erected tents with all the extras anyone could want.
There are even companies who rent out campervans by the week.
My father camped until he was 79, and wouldn't have a hotel or guest house holiday at any price! He was already planning for a cornish camping holiday just before his death.
Cheers, HG