The hard part is letting them be random instead of forcing them into Adult World schedules.
"Johnny, stop having a blast in the beach with the new friends you just made, or their parents might invite us for dinner or something! We need to drag you to the Museum of Boring Things right now so we can maximize the value-add of this vacation!"
This is one of the top reasons I'm interested in having kids. I think I need my life randomized a bit more, but "the app that sends me to random facebook events" won't come see me for Christmas when I'm old.
You may live to regret that. Most of the random things my kids do are cute and funny. There are also times when they are decidedly not cute and funny, and you spend hours scrubbing the walls getting rid of Mr Bee stamps and removing those your 7 year old stamped to the ceiling (how the heck did he reach the ceiling?!?)