Funny what defensive and hostile reactions people have to seeing other people carrying their babies in a sling! It seems to me the anti-"babywearers" are much more of a league what with rattling off their parenting choices as if it was a check-list:
"Unfortunately, I've used Gina Ford with both my children (and couldn't have coped without that book), did controlled crying with the first, elective c-section with the second, gave up breastfeeding after a month... And so the list goes on... (oh, just remembered, I put my first DC into part-time nursery at 3 months so I could go back to work!!)."
A lot of this "babywearing" stuff is just common sense: for example I carried DD1 in a BabyBjorn for a year because it allowed me far more mobility (in London public transport!), I walked everywhere with her, she napped in it so easily without me having to settle her, I could do the housework with her in it etc etc.
I was in no way any kind of "earth mother" type before having children, and am still not, but some things just made sense to me. Same with breastfeeding. After having DD1 nothing else occured to me but to breastfeed her, so I just did it.
And co-sleeping. We put my DD in a moses basket and then a cot, but if she's wake up crying it would be far easier to put her between us than try to find other ways to soothe her back to sleep. Controlled crying is something I just could not do.
BLW - we kind of did this because my very strong-willed DD refused the spoon altogether so we gave her finger food...what is so weird about that?
Nursery...if you have to do it, you have to do it, but surely no mother will do this out of choice when her baby is very small?
As NinkyNonker said, the vast majority of people do things your way OP these days, so why the insecurity?
Having said that, I am pleased to see such a number of BabyBjorn's (often worn by dads!) here in Muswell Hill 
By the way, did anyone read the health news article in today's Observer about breastfeeding?