It’s very easy to take something for granted when you’ve had it that long
Then what happens? You keep going forward and growing i.e., for example, you now run a company, you’re married with or without kids, you’re on your tenth anniversary, from a Datsun to a Porsche, from a bicycle to a Harley Davidson, from broke to rich, broke to billion, broke to famous, rags to riches (I remember how much I liked this tv series when I was young). Then, what happens when we get all too familiar with what was once difficult for us to something that is our new norm? We can take many many parts of our life for granted.