When can I stop sterilizing my baby's bottles (she's currently 14 months old and formula-fed)?

Ako mommy, I still sterelize - 1.5y/o na si baby and formula fed din. I know sabi nila it's no longer necessary since at that age of a child, super marami na syang ineexplore na things and most probably she tries to put everything in her mouth so para saan pa nagsterelise. Pero my point naman is, kasi it gets contact to her 'food' and directly put into her mouth and she swallows pa so why compromise di ba? After all what are we to be lazy of when sterilizing. It's super simple to do esp if you have the equipment naman. :D Just my two cents.