Again laskern I’m not saying there aren’t justifications for these practices the rema is one reason others include that too cold to go to mikva (Agur ) and that not meyuchas (beis efraim )
See aruch hashulchan 128:64 who says there is no good reason
והנה וודאי אין שום טעם נכון למנהגינו לבטל מצות עשה דברכת כהנים כל השנה כולה. וכתבו דמנהג גרוע הוא
Joseph
I’ll bet you are neither yekke nor sefardi. Thus those examples apply to both of us.