It’s like my four year old “please mummy can I have more chocolate”... nope so he asks the question again and again.
It is nothing like your four year old asking for another chocolate hmm. Leaving the EU is a massive and potentially damaging undertaking and we are long past the stage where trivial nonsense about children and chocolates will do.
How is it different in any way in principle? Just because the Hatton Garden heist was theft on a grand scale doesn't mean that stealing sweets from the corner shop isn't also theft. Democracy is democracy whether it's choosing which restaurant to go to with friends or a national referendum.
If the result of the referendum had been 52/48 in favour of leaving, can you honestly say that you would now be earnestly calling for a second referendum to give people a chance to reflect on their choice and consider if they now wanted to change their mind on such an important matter? Or would that not have been necessary, because you said so and you agreed with the outcome?
Democracy means that the majority decision goes and, if you're in the minority, you just have to accept as an adult that your choice didn't win. Other non-democratic countries are available, should you prefer to move. Start a country of your own if you know best in everything and fancy yourself as a benevolent dictator.
Would you like us to go back to the time when only those people who could be relied on to make the 'right' decision (i.e. they had money, power and influence and were born to rich families - and were male, naturally) had the vote and ordinary folk (and all women), however wise and considered their opinions, never got a look in?