I'm 53, with 3 kids....two aged 20 and 15 from my first marriage, and a 6 year old with my wife now. I find seeing the world through my little guy's eyes helps slow time down.
When a 5 year old is told "maybe next year", that a full 20% of his/her entire time on this planet, if you consider long term memory as firmly taking root around three years of age, then a year is fully 33% of their remembered experience. Now at 53 if someone says 'maybe next year' I think...meh, so what....I've had 53 years already, that's less than 2% of my time here.
There are so many parodoxes in life....my six year old has no patience (I had none at the same age) while I have much more. But logically shouldn't the one who, in all likelihood has another 75 or so years of life in this world....the one with the most time ahead of them should have the patience, while the oldsters like me who'll be going to our reward in another 10, 15, 25, 30 or so years...we should be the impatient ones, especially when the last 10 or so years of this life can be so limiting....