I don't attend yurt or Steiner environments with my kids or anything like that. I'm an alternative kind of person, just my parenting is not because I've learned it can't be. I've found more common ground getting involved in scouts and sports activities, and other structured activities. Or the only other boy mum in the park in the wind and pissing rain.
When we did go to more relaxed hippy environments with kids invariably our experience would be ruined by other kids who's parents thought that they didn't need discipline. My kids got frustrated with having their art works drawn over, picnics stomped through, sand flung at them in sandpits etc. i know that the premise of gentle parenting is actually authoritative parenting not permissive, but too often there is too much gentle and not enough parenting IYSWIM. It doesn't do the kids any favours, as a PP has seen in her nephew they end up hard to be around and not playing well with others.
Also, even really authoritative parenting is incredibly time consuming. It doesn't fit well into real life, when sometimes you do just have to get shit done. Very few bosses are going to be impressed with an employee who comes in late frequently because they have been hugging out a tantrum. Sometimes that child just needs strapping in a car seat and taking to nursery in a strop, so I do think a lot of gentle parents have class privilege, privilege from Work from home, flexible work, a stay at home parent etc. Whereas a lot of us are juggling a lot, and can't always prioritise working through emotions over functioning in society. I do think a certain amount of boundaries does come from them knowing the actual reality of life, because even if their parents are infinitely calm and patient (and how many parents feel guilty for falling short of that now?) the likelihood of them having a clear path through life only coming into contact with other infinitely calm and patient people is incredibly slim. Of course, a certain amount of privilege means that you're more likely to have a smoother run, as the majority of people working minimum wage jobs or similar will know, nobody really cares about your processes, just your functionality.
I'm not saying we shouldn't be Concerned with our children's emotions, of course we should. But they cannot take absolute precedence in their parents lives, and if they can their parents need to accept that that is a privilege not everyone has access to. That a lot of parents do not have the time, resources, etc. to always put their child's emotions ahead of their material needs and practical needs (working, paying rent, dealing with debts, buying groceries, attending heath appointments, getting to school/nursery/breakfast clubs on time etc.)