It is normal to ask for help if you come across a difficulty that you cannot overcome. It can be as simple as asking someone to explain a homework problem you do not understand. I am sure you can think of some more examples from your life.As human beings, we do not exist alone but in a society where we depend on others.
Think of some situations you observed in films and TV shows or read about in books or learned about in history.
It is the right thing to do to help someone in need. For example, think of the massive volunteer efforts to help victims of a natural disaster, such as a hurricane. On a large scale, think about what constitutes heroism.
This is a very broad topic and you need to narrow it down.
On the other hand, think about the consequences of not asking for help when you really need it.