We can see that with food: as soon as the shaming of people for being fat weakened, as it happened primarily in the US and then in the Western world at large, people started to indulge without guardrails.
We can see that with clothing and appearance: people started to dress slovenly, preferring comfort to being presentable and well-put together.
We can see that with "productivity": people started doomscrolling for hours or watching hours upon hours of life lived by other people, instead of living their lives.
Dressing with intention does not require any particular willpower, just some desire, intention, a bit of time, and a taste that may develop over time.
Avoiding doomscrolling is not that hard. The first few days are usually hard when we want to break a habit that's hanging around like a terrible smell, but after that, it is smooth sailing.
One can play victim not forever but for a long time: we have seen that in particular between 2010 and 2015, with people claiming to be abused by the most absurd things. But those abusers remain absurd, and the alleged victims--of food, social media, celebrities stealing their attention like a bully steals candy from a nerd-- pathetic.
People don't share your priorities or beliefs. Maybe that's why they act differently.
> Avoiding doomscrolling is not that hard.
If you mean addiction to social media, that's empirically not true. You can see how many people are addicted, and the research about it. Typing a few bytes into HN doesn't change or establish any facts.