我想词
tough choice/tough call 很难的选择
decision making 做选择
joint decision 合伙做决定
life-changing/major decision 重大决定

嗯，少了点例子。

来了～
词汇：
Collective intelligence 集体智慧
Pertinent 相关的
Efficiently 效率

Well if I can choose, I wouldn’t want to make important decisions alone because I don’t trust my own judgement 100% lol.
But life isn’t easy and you won’t have people coddling you for the most part so you have to learn how to make important life decisions for yourself.
At one point of your life you may have to make a decision that has to do with another person like getting married or having a kid. Then you should involve the other party in making that types of decisions because they will get affected by them.

Yeah, definitely. I have decided to marry you. You ain't gonna talk me out of it.

The thing about involving another person in your decision making is that you've always got the ability to veto any proposals that might come up. So decision making would always ends up in a conflicting situation. If you've already got things figured out, it's better just to loop any conerned parties in but politely ask them to shut the **** up cuz you're gonna veto the **** out of them anyway.
If you are gonna need some real advice to help you make a decision, then you know you won't be able to make the decision alone.
If the situation involves another person, that means your veto power will only work at 50% efficiency, it's better to sit down and talk.
So never make a decision alone unless your veto power works at its full efficiency.

Relying on others is always seen by me as a sign of lack of Self-confidence when it comes to decision making , I don't need any help on it , Just do What I want . Once formed in mind , I always translate my idea into action Without any hesitation .