See, I find the opposite. Any sleep training method that involved letting my baby cry just wasn't for me (no judgement at all to anyone who uses CIO) and I really resisted cosleeping until about 6 months. We were up every hour or sometimes less, and it was at a point where I was regularly falling asleep holding my son in bed which is obviously far, far more dangerous than any risk from planned, safe cosleeping with a six month old.
So as a result, my 15 month old still cosleeps with us and I'm not going to bother trying to get him in his own bed until he's a little older, old enough to understand a little more. I'm aiming for before 3.
Anyway, I've felt lots of judgement about cosleeping - there's plenty on this thread, there was one comment in particular asserting that mothers only cosleep because they're selfish and want to feel needed
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I think this is the issue - most mothers end up feeling judged for their choices, because there's a vocal minority of mothers who insist on being cruel about anyone who parents differently to them. I assume it stems from insecurity.
My mum coslept with me, and my grandmother coslept with her children too. But my grandmother in particular has also described times where she couldn't respond to crying (she had three young children after all!). She doesn't see that as remotely contradictory, because she parented in a time where she was just left to follow her instincts. She didn't read any parenting books, she didn't have masses of stuff online about different "approaches", and she didn't feel any need to align herself with a particular approach and follow the rules to the letter. She just parented the way she instinctively wanted to.
I think that is the most healthy approach - trust your instincts. We're all doing our best, and what other people do has zero affect on you. AFAIK, there's no evidence that sleep training causes emotional damage. There's also no evidence that sleep trained babies sleep better than non-trained babies in the long run. So just do what is happiest and healthiest for you and your family, and know that the people who are judging you are probably just very insecure about their own parenting.