Yes is how you get your first job, and your next job, and your spouse, and even your kids. Even if it's a bit edgy, a bit out of your comfort zone, saying yes means that you will do something new, meet someone new and make a difference.
We can't expect to solve problems if all we do is tear each other down. You can disagree with a certain policy without demonizing the person who espouses it.
As you get older; you've probably noticed that you tend to forget things. You'll be talking with somebody at a party, and you'll know that you know this person, but no matter how hard you try, you can't remember his or her name. This can be very embarassing, especially if he or she turns out to be your spouse.
We do our children no favour by keeping them near, coddling them, or showing them off to adult visitors. Not that a nursemaid does not sometimes spoil them. But the greatest favour we can do our children is to give visible example of love and esteem to our spouse. As they grow up, they may then look forward to maturity so they too can find such love.
I think this is when most people give up on their stories. They come out of college wanting to change the world, wanting to get married, wanting to have kids and change the way people buy office supplies. But they get into the middle and discover it was harder than they thought. They can't see the distant shore anymore, and they wonder if their paddling is moving them forward. None of the trees behind them are getting smaller and none of the trees ahead are getting bigger. They take it out on their spouses, and they go looking for an easier story.
Encouragement requires empathy and seeing the world from your spouse's perspective. We must first learn what is important to our spouse. Only then can we give encouragement. With verbal encouragement, we are trying to communicate, "I know. I care. I am with you. How can I help?" We are trying to show that we believe in him and in his abilities. We are giving credit and praise.