Hi,
I'm also in two minds about the need for stickers. Yes, you can breastfeed anytime anywhere and in 14 years of almost non stop breastfeeding I have breastfed anytime and anywhere - church, restaurants, mountaintops, school during reading - anywhere. I have never had anyone ask me not to - ever. I have barely even registered a bad look. Sometimes a curious question - I guess it's a bit unusual when you are breastfeeding a much older child (esp when she's Chinese and you are not - we adopted each other) But overall I find the stickers reassuring.