People collectively start following orders, like kids! (4)
I believe the answer is:
folk
'people collectively' is the definition.
'folk' can be an answer for 'people' (informal term for people). I am not certain of the 'collectively' bit.
'start following orders like kids' is the wordplay.
'start' suggests taking the first letters.
The initial letters of 'following orders like kids' is 'FOLK'.
Can you help me to learn more?
(Other definitions for folk that I've seen before include "[KINDRED]" , "People in general" , "Kind of music" , "Sort of music" , "People; type of music" .)