The new, larger narrowbodies are adding a lav at the front of economy which helps with this. https://www.united.com/en/us/fly/company/aircraft/boeing-737...

True, but it's not all roses. If you like to sit at the front of economy to exit as fast as possible when arriving, you will be sitting next to a heavily-used lav which is not enjoyable. You have to sit 4-6 rows back from the lav to avoid the annoyance.

There will always be good seats and bad seats. They can't all be good seats.

Apparently paying for an upgrade to a nicer cabin isnt an option either.