Like Sima You Yue or Xuan Qiu He. They just happened to naturally not have to be one of those who had these worries. However, she didn't go in immediately either.
In the beginning, when they first saw the barrier, they didn't think too much about it. It was only when they saw all the attacks of others getting repelled that they began to take it seriously.
For example, Eastern Lai Li.
After failing a few times, just as her hatred for the barrier had reached its peak, she saw the Northern Du Clan rushing over.
They had clearly been walking ahead of them all this while, so how did they end up lagging behind them?
In the beginning, Northern Du Hao did not think anything of the barrier. Then, he quickly ended up like Eastern Lai Li. He realised that he was helpless towards this barrier.
Eastern Lai Li saw that Northern Du Hao didn't succeed, and only then did her worried heart calm down.