When you are homeschooling at the speed of life, learning...most REAL learning...happens away from a worksheet or textbook.
Some of the most memorable and meaningful life-schooling is done when you take the show on the road...when you venture out to meet real people and see real stuff...when you experience real life the way it WAS lived or IS lived...when you take a field trip.
But, let's face it.
A large homeschool family is a herd that moves rather slowly and comes with a pretty hefty entrance fee.
Field trips aren't cheap!