It's good to care about your family's health.
Greg's kids love sweets, and it's really hard to get them to eat vegetables.
Greg wants his kids to be happy.
Greg wants his kids to eat fruits and vegetables, but he allows them to eat sweets in moderation.
Greg allows his kids to continue eating sweets if they want to.
Greg's kids are happier since their bodies are healthier, and they aren't too upset.
Greg's kids' health continues to deteriorate, and they continue to gain weight.