Earlier quoted context omitted.
And you can avoid gross plumbing problems by not owning a plunger. You can have professionals with plungers deal with that. Frankly, it's a privilege to able to rely on public and paid services to protect you and your property. Not everyone gets the same service levels and not everyone can afford to pay to fix the problem.
And do those professionals need access to YouTube tutorials to see how to use the plunger?
But, yes, there are a few extra steps to unclog a bathtub with a plunger. YouTube videos are pretty handy there.