Yabla video uses of 想当然

为什么 wèishénme
就是 jiùshì
子女 zǐnǚ
huì
想当然 xiǎngdāngrán
de
认为 rènwéi
shuō
这个 zhège
财产 cáichǎn
一定 yīdìng
shì
我的 wǒde
Why is that? It's because children take for granted that, "These assets are mine."