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Yes and no. :)
An unpleasant experience thru lack of perfection of skill will put some off continuing. Nothing wrong with getting all the help you can get while you learn. Absorb what is useful...

You make good points but the bit I highlighted in red from your post is the thing that's lacking for most newbs hence attention to prep may well give them an advantage & better results.
Good...

It's all a bit like fishing to me. Some reckon the high tide is best some the low.

Fish how you want , high or low, shave how you want, hot or cold. You have to be the only person that is happy...

If you want your hair to be really brittle rather than soft, shave dry. :p