It's a habit. Personally, I think lying takes up way too much mental space. It's sort of like driving with the seat belt unbuckled; just makes me anxious.

It's a skill to be honest faster, and with less hesitation. The faster you can be honest, the more benefits you reap from it.

Kindness is similar. You want to be kinder faster, with less hesitation.

Otherwise, it will feel forced.