Lots of scenarios can be 'ported from the classic TV situations
for city kids. If the characters are country kids things get a little more limited, as animals and plants have their own cycles and don't wait on us.
As obvious examples, during lambing or harvest kids won't be able to spare the time or attention to even
notice the seeds of an adventure, much less get involved in it. Not unless it's something that shakes the entire community to its foundations.
I'd think in many ways the hard part in either case would be keeping the adults out of it. Kids' automatic response to most emergencies is "first, tell a grownup", and for good reason. Fine and good, but if all you zero level guys tell the second and third and fifth level guys, they'll tell you to go home and they'll have all the fun and get all the experience.
True to life perhaps, but makes a sucky RPG.