i do not know if your friend knows this or not, but my BIJI told me that every time you say Waheguru so does each hair on your body ... so think of it this way ... you say Waheguru once but because of your hair you are saying it a million times .... isnt our Waheguru so beant(generous) ... he is helpin us in so many ways ... y should we not live up to his expectations ??
another thing i will say that this is a test that she has to pass and that she has to prove to Guru Ji that she is a true Gursikh. also about nindiya have you heard the shabad
Nindo Nindo Moko Log Nindo
it is a shabad by Kabeer Ji and basically everytime someday says anything bad about you there are helping you ... so i think she is extremely lucky and also amrit is special please do not give up on it for such petty reasons.
Bhul Chukh Maaf
Waheguru Ji Ka Khalsa Waheguru Ji Ki Fateh