I think it is so interesting to hear about what the regional norms are with regard to formula feeding or breastfeeding in your area! It's amazing that what is common and expected in one place can be completely different in another. Depending on where you live, your choices with regard to this could really affect how you feel, whether you FF, EBF, or do a combination.
Personally, I do a combination of FF (mostly) and BFing and have major supply issues. The area where I live I find the majority of mom's EBF or close to it :).