Does he need a ticket?

他需要票吗?

As stipulated, chikfren over the height of one meter should be charged.

按规定，超过1米高的孩子都应该买票。

Children can travel half fare.

儿童可以半票乘车。

Is he an "adult" or a "child"?

他是成人票，还是儿童票?

Children under ten years old can travel half fare.

10岁以下儿童半票。