It’ll be made for you.
And it might not be the one you would have made for yourself, except you hesitated. Didn’t want to deal with it.
But if you put off making a decision you really need to make, because you’re afraid to make the wrong decision, you’ll be stuck with a result that you’ll have to live with for a long time.
It may be a decision you’d have made much differently, but were hesitant to decide one way or another.
So now you’re stuck with the consequences.
Consequences you caused because you wouldn’t make a decision. Isn’t it better to live with the consequences of a decision you made, instead of one you refused to have a say in?