"Warm up your account before posting" is a myth we need to stop spreading
I keep seeing this every time I hear advice for new YouTubers.
"You have to use an aged account and warm it up before posting to avoid shadowbans, yadada yada"...no you don't. YouTube themselves have never confirmed this was necessary step to start a channel, and they likely would if this was an essential feature.
I opened a brand new channel 13 days ago, and posted minutes after its creation. My first short had 30k views, and I've since cumulated 100 subscribers and made 300 thousand views across all my videos in this period.
It's anecdotal, but it does reinforce the idea that this "warm up" advice is just nonsense.
And my theory is that it's pushed by scammers who want to sell "warmed up" accounts to oblivous people that think this will make a difference. It won't.
If you want to start a youtube channel, stop overthinking; go on youtube, create it, and start posting!