My best guess is that sellers feel uncomfortable showing strangers around their home and negotiating on price, and avoiding this discomfort is worth the agent's fee. But this feels like an unsatisfactory explanation.
[1] e.g: http://www.tepilo.com
http://www.realtor.com/advice/who-pays-the-real-estate-agent...
What should change though is the pricing structure. In a lot of countries contracts are still exclusive, payment is a provision (let's say 3-5% of the total value and thus high incentive to upsell a property), the buyer has to pay the agent fee and while one service is to pre-approve buyers there's never a guarantee or money-back if the buyer turns out bad.
In my country to become an estate agent takes 1h and 35 Euro. Of course you can get certified. That's one weekend and 1000 Euro then.
A fixed fee with maybe a fixed bonus paid by the seller would be the best model.
- Fast food chefs (replacement still in development)
- Janitors / toilet cleaners (Roomba and friends, still a long way to go)
- Window washers (bot exists, still not widely used)
- Fruit pickers (complicated, replacements are apparently happening a fruit type at a time, lots of development)
- Street sweeping vehicles (cars have to move out of the way, etc. Smaller bots would mean streets could get cleaned at any time)
- Manual garbage recyclers (work is being done in this area, but object recognition and separation still needs a lot of work, apparently)
Not a job, but still needs big improvements: litterboxes. The automated ones still have problems: can't use certain kinds of litter, noises can scare cats, you still have to clean the filters out yourselves. It would be much better if there was some kind of auto-disposal/self-cleaning system, or even a way to turn litter into energy.
But such automation will likely cause disruption -- real disruption like civic unrest -- in several countries.
Bangladesh's economy is predominantly textiles, which accounted for 80% of exports in 2013.
I wonder whether the Bangladeshi government would assassinate people working the field. That plot would make an interesting indie dark comedy anyway.