See Matthew Chapter 18.

The disciples were keen to jockey for position in what they perceived was  a new kind of kingdom.

Yes, there is a new kind of kingdom but there is an attitude of humility that has to be adopted. A small child is dependent on his/her parents for food & clothing & life decisions. There is no house , no car, no job , no big bucks to give a feeling of status. In fact children can often be completely ignored.

This is a level playing field where we are all invited to enter the kingdom of God not because of who we are but because of who Jesus is.

Thanks IR  Great Preach!!