This makes sense Trevor, because when I was young, I'd watch and laugh at some of the cheesiest jokes on television, or in movies. I watch some of those same shows today, it's more of a reaction now.
I will admit that I'm still a softy for farts, I lose all composure and laugh longer then the normal person.
I can see this is myself. I still enjoy most of the things I did long ago but now most of the time it just brings a smile to my face. Out-right laughing comes far fewer times during the day.