My kids are 5 and 3.
I've always believed, and been told constantly by others, that once you've said 'no'to the kids, or told them that 'x' is their punishment for y, or whatever, that you mustn't go back on it.
It made perfect sense to me.
Of course you mustn't, otherwise they'll lose respect, know you're a pushover, know they can 'get away with it' with next time etc etc
Except I've been thinking about this (amongst a lot of other things) a lot recently, and think... Well actually, it makes no bloody sense at all.
Surely it's better for your children to see you as human? As a person who is capable of making mistakes?
My mum is a massive believer of the former. That's how it was when I was growing up.
But I remember thinking how unfair it was, that she'd have these ridiculous over reactions to things, she'd (very rarely) apologise, but then even when she did (can only think of two instances), the punishment would still stand.
I remember thinking 'but you've admitted to being wrong, why am I still being punished'. Think it was better when she didn't apologise, then at least there wasn't that conflict of emotions from me.
Sorry I'm rambling.
I really believe this mentality of 'mustn't back down' is hugely damaging.
I think it makes children doubt themselves, makes them not feel confident in their ability to distinguish right from wrong.
This has been an absolute revelation for me.
I believe some people will think I'm an idiot for not seeing this sooner, others will think I'm an idiot for feeling this way at all.
I've been doing a lot of soul searching lately, about the way I behave towards my kids, after realising that the way my mum raised me wasn't the ideal way, and I can't believe it's taken me being nearly 30 years old, and having a child nearly 6 to realise that I wasn't very happy growing up. (Feel so disloyal writing that, even anonymously)
Regarding my DC, some things I do I am very proud of, others I am utterly ashamed of. I am trying not to be too hard on myself, I think it's normal to feel guilty a lot as parents?
There are of a lot of other issues obviously, but I wanted to focus on this one in particular, as it just seems so prevalent.
I want genuine opinions, which is why I have posted here, as people don't tend to mince their words on AIBU...
I have just been doubting myself loads lately, and wanted to see other opinions, as mine seems to have done a complete 180 almost overnight.
(Also sorry for length. Couldn't stop once I had started) 
Also hope this all makes sense, I'm writing on my phone, and kept editing things, hard to not go off on tangents