Because in the modern walled garden, all decisions must be made by the benevolent corporation for benefit of the consumer. We're paid to think so you don't have to!
If myspace gave us the canvas and an unlimited selection of paint colors, Facebook gave us a color by numbers coloring book and four pre-approved shades of blue, along with a small static shock whenever a color went over the line.
And you know what? As a guy with no kids If it takes parents getting mad at YouTube to finally get some sort of critical mass on giving more control to the end user how they interact with the platform (aside from obvious outliers like malicious/offensive/illegal content), I'm all about it.
I wish platforms would realize this. We're glad to use the platforms, just stop trying to herd us into doing it the way you want.
Maybe I'm looking at too rosy of an ideal, here though.