Reaching a milestone in my adulthood

My kittens are being spayed (Ducky) and neutered (Brisket) tomorrow. In my adult life I've had kittens three times. This is the firs time I've ever had the kittens long enough for them to reach the sterilization phase. Usually I get bored with the kittens after a couple of months and give them away to someone who is less likely to get bored with them.

Is this a measure of my arrival into adulthood, that I can love a kitten long enough to shepherd it through the bits chopping phase of its life? I like to think so.