If people have to pay for the weight of their trash bin, they will dump their trash elsewhere. Save that heavy old metal bit from the car and just toss it onto the side of the highway in the middle of the night when no one is watching.

Also, people will find other ways of disposing of their waste, such as burning it (and harming the air quality) or flushing it down the toilet (and causing blockages and breakages in the sewer system). Those living on the coast can just dump their waste into the ocean, saving money and polluting the coastal areas. If you live near a river, you can just dump the waste in the river.

This is just government trying to get more cash to pay for more illegal and immoral activities. As with most things thought of by government and indeed as with any effort to get “free” money, this has some nasty side-effects, which will prove worse than the initial “problem”/excuse.

It bills people twice for trash disposal. Once in their taxes, and a second time when the trash is collected. This is unfair, basically it amounts to an undebated raising or taxes.

The second problem is that data. With that data, a trash-person could know information about households. For example, if almost no trash was collected, they might presume that the household is on holiday and break into it. These sort of things have happened in the past with new and unique data.