Why wait? From Ars's writeup of the same bill[0]:
> As described in the text, social media companies would have to limit users to 30 minutes of use per day by default. Users would be allowed to choose their own time limits for daily and weekly use, but companies would have to reset that time limit to half an hour every single month, as well as providing "conspicuous pop-up" displays at least once every 30 minutes showing how much time you have spent using a service in the past day, across all devices.
This is just political grandstanding. (I hope) nobody would ever actually vote for this.
[0]: https://arstechnica.com/tech-policy/2019/07/proposed-us-law-...
