Too many middle names?

I don't mean to be a jackass, but my sister literally has given all of her children 3 middle names. She expects us to use all of them when talking to her kids. I think it is unrealistic as heck. On a good day I barely remember my kids names anymore. 😂 just kidding.

1st niece Lilliana Evelyn Katherine Grace

2nd niece Zoe Amanda Aiyanna Rene

And soon to be nephew Aiden Sawyer Milo Thomas.

I mean goodness gracious. Its a mouthful. I dont want to be a jerk and disrespect her wishes but I can barely keep them straight!