No matter what you do, professionally or hobby, someone else will always know a better way.
They don't/won't want to understand why you do it and will try all kinds of argument to persuade you to stop/do it their way/change your ways.
Unless what they're saying is some very good safety based information, on points you hadn't yet spotted but come to realise they were possibly right.
Politely as you can tell them "thanks for your input, but I'm happy they way I'm doing it".
If that fails, I'm sure you can come up with something :lol:
I've got a mate, a really nice guy and we've been friends for 30 years or more. He's the most cackhanded bloke you could meet. He's got this freaking annoying habit of questioning everything you do. I reckon it's because he can't do it, so he can't see how someone else can.
It's "what if this happens?", "what if that happens?", "do you think we should call someone, maybe a professional?".
If he turns up at mine and I'm down the shed, I come in and lock the shed up. It's just so much easier than him bombarding me with his negative ways :lol:
Give him a court room to perform in and he's like a god, give him a screwdriver and he'll have his eye out :lol:
Go the way you want, if it makes you happy then all is good.