I agree piscesmoon that a minority of people think in stereotypes, which tells more about them than anyone else really! Maybe some people find it hard to get their head around the idea that women who give birth at home are doing so because they're tree hugging hippies, rather than for the simple reason that they have looked at the statistics, they are low risk, and comfortable to be at home!!
I do kind of see what you mean, and indeed experienced a little of this sort of thing with my first, when only two of us from our NCT class chose to deliver at the local MLU (even though 4 others in the group were low risk and could have chosen that option too!)
But it was a case of a few rather irritating comments like 'Aren't you brave!' (Er - nope, not particularly, I just wanted to give birth to my baby safely and naturally if possible) or 'Gosh, how will you feel if you have to be blue lighted to hospital' (Er- not thinking about that very much at all, as the MLU had already informed me that it was almost unheard of for a woman to be transferred in urgent circumstances. Any transfers were usually several hours ahead of the actual birth, and were the mothers choice, not for medical need.)
No one actually told me my birth choice was 'wrong'. And indeed, most of them tried to get a transfer back to the MLU following their hospital births, and opted for the low tech option with their second babies, so clearly they didn't feel my choice was 'wrong'.
I really think if anyone actually believes another woman has made 'wrong' choices in her birth, then tbh it shows that she is insecure in her own decisions - rather like the parallel made with WOHM/SAHM