I'm going to lie to my kids
Its terrible to lie to your kids. Why do it?
Yes, I'm going to lie to them
Lying to your children is wrong since it teaches them that lying is okay when it is not and ruins their trust in you as a parent. Rather than lie to your children be more open and honest so that they can internalize good moral values.
Their opinions don't count, I'm the dad.
Of course their opinions count. They're going to grow up not being able to believe you. When you're older they will feel like they can't trust your advice.