Our Faith permeates every living moment, whether we realize it or not. Our children's happiness, self-discipline, obedience, sharing, cooperation, thoughtfulness, all stem from being exposed to the teachings of our Faith. If we do not teach our children to know, love, and serve God, all the academics are for nothing. Invite well-meaning relatives to teach the children for a day using CHC's materials. They will see that besides incorporating the Faith, CHC's materials are also academically challenging.
Isn't it odd that friends or relatives sometimes think that children need more exposure to the world, as if somehow they are not already exposed by TV, radio, in the grocery store, at the shopping mall, the beach, the park, even at church? The secular world already has more than its fair share of 'influence.' Being Catholic, your homeschool and your family life will have remarkable and obvious differences from those of Protestant or secular neighbors.