Mothers all over the world are very busy. 

问题：

What are they busy about?

They are busy asking their children to eat every day,

They are busy asking their children do homework  every day,

He was still shouting “Hurry up!

Only mothers in the East tell their children to sleep.Western mothers have already tell   their children  to wo ken up.​

.".....才....." is a Chinese grammatical structure that is used to express a condition or sequence where one action or state only happens under specific circumstances or after another action/state. It can be translated to English as "only...then..." or "not until...".

Only southern mothers tell their children to wear skirts.  The northern mother tell their  child to put on a hat.

The whole world is mother’s voice, Children grow up with their mothers voice.

Mothers all say that there's nothing they can do about it; 

they grew up   like this when they were kids too。