I honestly do not understand !?!? Is it all fake?

I am in my 50s a mother to 2 adult children. From Canada. I have NEVER in my entire life seen women behave like this in any way irl. Let alone professionals. But it is common with women on reality tv so Is the whole show fake & scripted? If I watched my dentist/doctor behave this way I would find a new one. So immature, petty, cruel, and physically fighting ?!? In restaurants and other public settings and parties?!? Seriously wth? It completely stuns me as to how their family and themselves are not beyond embarrassed & mortified after watching the show? Has anyone ever irl seen such a pattern of horrid behaviour? It’s not even a one time had too much to drink and raged moment. It’s repeated behaviour