They could, but it'd take a lot longer and movers are usually paid by the hour so they could expect to hear a lot of "Stop playing on your phone and get to work" or even "why are you taking photos of my (or my child's) stuff" which could get pretty awkward.
I expect that right now moving companies do sell info like your name and your old/new address. That alone should give them a rough idea of your income level, if you're getting poorer or richer, starting a family or recently divorced, etc. If you're using a moving company like Flat Rate and taking photos of all your stuff so that they can make an estimate they could be selling that data too.
They could, but it'd take a lot longer and movers are usually paid by the hour so they could expect to hear a lot of "Stop playing on your phone and get to work" or even "why are you taking photos of my (or my child's) stuff" which could get pretty awkward.
I expect that right now moving companies do sell info like your name and your old/new address. That alone should give them a rough idea of your income level, if you're getting poorer or richer, starting a family or recently divorced, etc. If you're using a moving company like Flat Rate and taking photos of all your stuff so that they can make an estimate they could be selling that data too.