I've seen several different solutions to this problem over the decades, and they all have one thing in common: they quickly get value-engineered out of existence.

There's always a fraction of a cent to be saved by adding slightly less adhesive, using slightly cheaper plastic, replacing the perforating tool less often, etc.; couple iterations in, the solution stops working reliably. There's no back pressure, because it's not like anyone is choosing where they shop by whether the single-use plastic bags are easy to open.