It’s not practically feasible because people will find ways around it. The app can require an eye tracking features to be turned on, but people will go to the browser site. If they get the people making a browser to integrate it, then people will use another browser. They’d have to block access on any mobile browser that doesn’t enforce it, and that’s a futile effort.
At least on IOS, they tried to lock Picture in Picture and background play behind a paywall, but that only worked in the app, and both features still work for the mobile site with a bit of fussing. Just because they implement restrictions and features doesn’t mean they can actually get them to work enough that people won’t glitch around them.
It’s not practically feasible because people will find ways around it. The app can require an eye tracking features to be turned on, but people will go to the browser site. If they get the people making a browser to integrate it, then people will use another browser. They’d have to block access on any mobile browser that doesn’t enforce it, and that’s a futile effort.
At least on IOS, they tried to lock Picture in Picture and background play behind a paywall, but that only worked in the app, and both features still work for the mobile site with a bit of fussing. Just because they implement restrictions and features doesn’t mean they can actually get them to work enough that people won’t glitch around them.