The concept of “taking on oneself” with regard to a group

Hello ,​
The concept “get on himself” Regarding son person, quite clear. All of us We experienced you this. but what this Says That group received on herself? In which bike Receiving The group like For receiving son person?
I wanted to know how you define the concept of “taking on oneself” in relation to a group .
What is the criterion for knowing whether a certain group has adopted a norm for itself?? (percent of The details of The group received it On them, reception of Details that represent The group, something other…)
My questions :
1- What is your definition of the concept of “taking on oneself” with regard to a group ?
2- What are the common features between group acceptance and individual acceptance ?