User blog comment:Loudfan21000/Biggest TV Troupes in Loud House/@comment-33694397-20180324145647/@comment-30953185-20180324184829

OK, there were reasons for the LKS' their actions in all those events you just listed.

They wanted teach Leni to drive because they were sick of Lori making them do chores for her.

They wanted to keep Leni out of the loop because they were worried she would spoil the surprise.

They kicked Luna out of the band because she was being mean, and techinically she kicked them out first.

Luan's pranks were far worse then the prank her siblings pulled, their prank was just payback.

They made Lynn loose because they were sick and tired of all her gloating.

The LKs weren't really mean, they were just frustrated.

Lola had gave herself a reputation as a tattle-tale, so itmakes sense why the siblings wouldn't let her in.