他们也是成熟和负责任的，喜欢一切井井有条，不喜欢混乱的状态。

Being a parent's only child, expectations are always high, but unlike a first-born, they never need to fight for the attention of their parents.

作为父母唯一的孩子，他们总是背负着很高的期望。但与老大相比，他们不需要为了吸引父母的注意力而争斗。
Not to mention, being in a household with only adults often leads the child to mature more quickly and copy the actions of the parents, rather than being moulded by siblings' childish or youthful interests.
更不用说，一个只有成年人的家庭环境常会让孩子更快地开始成熟并模仿父母的行为，而不是在兄弟姐妹幼稚或年轻的兴趣环境中长大。
But because they have never had to interact with siblings or companions of a similar age, they can have trouble relating to peers and can feel out of control when things in their life don't go their way.
然而，因为他们从来没有兄弟姐妹或与他们年龄相仿的同伴，当事情没有按照他们的想法发展时，他们会就感到烦恼，容易失控。
FAMOUS ONLY CHILDREN
身为独生子女的名人：
Leonardo DiCaprio
莱昂纳多·迪卡普里奥
Daniel Radcliffe
丹尼尔·雷德克里夫
Natalie Portman
娜塔莉·波特曼
Drew Barrymore
德鲁·巴里摩尔
James Dean
詹姆斯·迪恩
Jack Nicholson
杰克·尼科尔森
Elvis Presley
猫王
Alicia Keys
艾丽西亚·凯斯
Russell Brand
拉塞尔·布兰德
Maria Sharapova
莎拉波娃
They add that gender, social status, age gaps between siblings and the number of siblings can play a huge role in determining traits.
米切尔和布朗补充道，性别、社会地位和年龄差距，以及兄弟姐妹的数量也会在个性形成方面发挥重要的作用。
Moffit and Brown reiterate: 'Some aspects may be true for you, or make a lot of sense, but it wouldn't be the same for every single person around the world in your specific birth order.
米切尔和布朗强调：“某些方面可能对你完全适用，或者听起来就是这么回事，但这一理论并不能与世界各地每一个人的特定出生顺序完全对应。
'It's important to remember that your personality and your destiny in life is not predetermined at birth.'
“你的个性和命运是无法在出生时预先确定的，记住这一点非常重要。”