I think the problem is more the thinking that men must carry the burden of confidence alone at all times or risk being labeled less a man. A lot of this comes from alpha male ideology, but even wolves that the ideology was based off of, don't do this. The wild leading a hunt will give up that first place if it helps ensure a successful hunt. The fastest runner isn't always the wolf who can more quickly and safely make the kill after the deer has been run to ground.
Trying to be everything all the time to everyone is what's killing men. It's not sustainable. I truly wish they would reject this dumb ass ideology that was promoted specifically to capitalize off of male insecurities.
The second thing is thinking about confidence on a scale that must lead to to status. Confidence isn't useless unless it makes a man "successful enough", whatever that means. A man can be confident he could braid his daughter's hair, for example. That's not going to net him anything tangible on that damned hierarchical scale of manhood value. That doesn't mean the confidence is worthless. His confidence will engender trust with his daughter. She'll let him braid her hair without a toddler throwdown. That means they spend time together, which strengthens familial bonds. She learns she can count on him. He learns about her. Maybe he even finds peace and joy in the act of braiding. Grooming is soothing for a reason. So, modest health benefits. He's taken something off the plate of his spouse, so benefits to that relationship too.
All from the confidence to give something you don't know how to do a try.
There's more things of value in life than the things that lead to money.
When we talk about confidence, men are cheating themselves and their families of presence when they focus too much and too hard on relating confidence to money making activities.
And that's wide spread.
Something else I wish men would reject.
My Dad used to braid my hair like parachute rigging. It was awesome.