It’s only natural, I think, to look at your two-year-old daughter and imagine what her life might be like in the future. She leaps around the room like a baby ballerina – a dancer. She gets out her plastic stethoscope and listens to your chest – a doctor. She pushes the dog off the back of the sofa – a pest-controller.

Then there are the hints of her future character. She tries to make sure everybody is involved in whatever we’re doing – she’s going to be sensitive to the needs of others. She befriends anybody and everybody she meets – she’s going to be sociable. She lures other children away from their parents whenever we’re in a pub – she’s going to be charismatic. Or a future cult-leader. No, I’m going with charismatic.

Unfortunately, not all of it is so positive. While her behaviour is probably (please God!) normal for a two-year-old, let’s just suppose for a second that my daughter acts the same way when she’s twenty-two. Those little idiosyncrasies of early childhood would look an awful lot different in an adult.

For example, imagine your grown-up daughter, who is called Izzie, suddenly appears in her doorway late at night as you’re walking past her room and declares, in a croaky, demon-possessed voice, ‘My name’s Actata.’

‘Jolly good,’ you reply.

‘What’s your name? Oi, where you going? Me talking to you!’

‘Go to sleep, Izzie.’

‘Me not Izzie, me Actata! Come back! Me in charge!’

You’d find that a bit weird, right?

Or what if your adult daughter disappeared upstairs for a couple of minutes, then reappeared wearing some sparkly gold sandals, a pair of knickers, a fluffy hoody, bright pink lipstick, dark sunglasses and a red woolly bobble-hat, with a bag of makeup over her shoulder, and then proceeded to strut back and forth across the lounge like something from the opening scenes of Pretty Woman, saying, ‘Me going to my new house. You not invited.’

You wouldn’t be strangely proud of her imagination – you’d be freaking terrified.

But that wouldn’t be anywhere near as alarming as your twentysomething daughter stripping off her clothes in the lounge every night before bed, climbing onto the back of the sofa, and doing five minutes of star-jumps while shouting, ‘Me naked, me naked, me naked!’ followed by, ‘Girls have noo-noos, boys have willies!’

And speaking of bed, what would you think if, every night after you’d made sure she was settled, your university-aged daughter took her pillow and duvet and made a little nest in the open doorway of her bedroom, and every time you returned her to bed you found her right back on the floor in the doorway again ten minutes later?

And what would you say to a grown-up daughter who claims ‘exercise’ is rolling off the arm of the sofa to fall flat on her face on the floor, time after time after time? Or who demands her dad sing to her every time she sits on the toilet to coax out her poop like a particularly gross snake charmer? Or who, whenever you’re driving the car screams, ‘Go, go, go! Faster, daddy, faster! Do your horn!’ Or who runs away from the cat every morning crying, ‘Don’t let her eat me, daddy, she’s going to eat me!’ Or hits her sister in the face with her doll Lucy, then claims it was Lucy who did it, not her.

Projecting into the future, there are only two types of adults I’ve met who behave anything like that. My daughter is going to be a melodramatic, free-spirited, adrenaline junkie nudist hippy who goes her own way, works as an actress, wears tie-dyes, conducts seances in her spare time, and is a shining beacon of what life can be like if we listen to our inner voice and refuse to conform.

Or she’s going to be a meth addict.

I’m really hoping it’s neither.