Yes, but that has an unspoken assumption that recent habits are more additive than longer term ones This is too fine a point. A user will "select" a default ch

Yes, but that has an unspoken assumption that recent habits are more additive than longer term ones This is too fine a point. A user will "select" a default choice by doing nothing, and it's in YT's interests to provide default choices that reward the company. This has been researched for decades and is supported by, among other things: https://en.wikipedia.org/wiki/Status_quo_bias https://en.wikipedia.org/wiki/Status_quo_bias