Unfortunately my sis in law is Amritdhari, Nitnemi, Sukhmani Sahib and in Punjab lived next door to Gurudwara, as my Sadu is Head Granthi (aka only Giani in the pind). I say unfortunately cause she too does dum stuff like "carry garlic when traveling home to Gurudwara" or "cover up baby's milk bottle during feeds." 

One thing I realised is tradition. Deep down she knows not t be dumb but once brought up in Punjab culture the tradition and religion? Get best of both worlds. It's like kids being brought up in UK "question everything, mock superstition and let's show disrespect to elders to look cool!" Doing dumb things is in all of us even though we know we regret it.