We've been camping as a family for 10 years now. My kids are now 12 and 14 and I hope they will want to carry on camping with us for a few more years.
I've found :
That expensive self inflating mattresses are worth every penny.
Agree about taking your own regular pillow - much better.
You need a bigger tent than you think ( an 8 birth as minimum for a family of four )
An electric hook up is essential is camping for longer than a few nights.
Ditto an electric camping fridge.
Keep all wash stuff and your change of clothes in a plastic shopping bag as it helps to keep everything dry in the showers.
It's all well and good taking loads of stuff with you to make your tent a home away from home but when a gale hits your cliff top pitch at 2am and wipes out every other tent on the site ,being able to pack up quickly is better. I've scaled right down - the inflatable sofa, the wardrobe and the portable loo no longer come with us.
During the same storm I realised that air tents are stronger in wind and bell tents are indestructible ( our bell tent neighbours slept through and couldn't believe the devastation around them when they woke up)
That it would mean driving a massive estate car all year round just to assist with our annual two week camping holiday.
A washing up bowl with a carry handle gets envious looks from other campers.
A large electric frying pan or multi cooker means you can leave the big camping stove and gas bottle at home and take a mini cartridge type single ring stove instead. We get used to cooking everything in the one big pan ( when we are not using the BBQ)
Electric kettle is a must and being able to make proper coffee is important.
Love camping - gutted that our trip this year had to be cancelled.