I REALISED something while I was at the park.

I want to be a four-year-old.

Okay, perhaps without the routine and restrictions pre-schoolers are - in their humble opinion - unfairly subjected to.

But it would be great to live without the worries adulthood brings but also, even more so, without the social etiquette anyone above the age of five is supposed to display.

Take my daughter, running around carefree, clambering over the equipment oblivious to the fact she is flashing her pants to the park.

If I had to do the same, I would awkwardly step on to the climbing frame or have to politely decline the opportunity to go play.

In winter, she isn't afraid to shove her hands into her tights to hoick them up in general view while us women have to waddle to the toilets praying that the gusset isn't showing.

Take my son, happily displaying a builder's bum as he bends over.

I have seen parents contort themselves into all kind of odd shapes trying to save themselves from the embarrassment of showing a bit of bottom cleavage as they tie shoelaces, retrieve toys or pick up screaming toddlers.

Eating with your hands, greedily tucking into an ice cream regardless of the muck all over your face - who cares, just lick it all off.

I wonder if there would be something cathartic about telling people exactly what you're thinking, like children are wont to do?

Perhaps it is not always the kindest or most appropriate thing to do and I wouldn't want to be at the end of a few "home truths".

Dating and friendships would surely be made easier if we all acted like children.

No more smartphone zombies, adults whose eyes are glued to screens in moments of boredom, but just going up to another adult and saying "I'm bored, want to play tag?"

Forget Tinder and Plenty of Fish, surely relationships would be easier if we could just go up and ask someone to be your boyfriend and if the answer was yes then it was official.

I pondered the idea of being four at my daughter's pre-school graduation.

Each child was asked what they wished to be when they grew up and the answers ranged from the conventional - police, soldier - to the more obscure - suit of armour, lion, ice cream and, my daughter's choice, a dog.

How great it must be to believe that anything is possible.

Now, I am off to see a careers counsellor about becoming a goldfish.