It is possible that your villagers are not accepting jobs due to a few reasons:
1. Villagers link to beds and won’t take a job unless they have one
You will need 1 bed per villager. They do not need to be able to access this bed though, they only need to be linked to it. So you could set up an area within a close distance to where your Villagers are and then set up Beds.
2. Any Villagers in an area will not take any professions until at least one bed is placed
Once a bed is placed, then all the Villagers will take professions immediately.
3. Villager professions in Minecraft are attached to their job site blocks
Without access to these blocks, villagers essentially remain unemployed.
4. All they need is to be able to reach their workstations
They will restock twice a day. They do, however need beds to breed.
5. The more workstations (job site blocks) are near a villager, the longer it will take it to get a job
This also is the case if the villager cannot pathfind to most of the nearby job site blocks.
6. Accepted Answer: If the villager has green sparkles but no job, it means that a different villager has taken that Job Site
So while you may want it to be that villager right next to it, it isn’t. I would suggest searching your village for the villager who did take that site the next time you place your Lectern.
7. Some villagers will not have any unique clothing, but they will have a green upper body
These villagers with green upper bodies are nitwits of the village. Nitwit villagers cannot have a profession.
8. Nitwits can’t do anything and are essentially pointless
They cannot take on a profession even if the player forces them by placing a job site block in the nitwits’ vicinity.
9. If a different villager has taken the job site, the sparkles mean that the job is already claimed
You can search for the villager who took that site next time you place your Lectern.
10. In Bedrock Edition, all villagers search for unclaimed job sites in a 16 block radius and 4 block height
If a site block is found, it is added to a shared list of valid job site blocks for the whole village.
11. Some villagers will have a green upper body and are nitwits of the village
They cannot have a profession and cannot take on any job.
12. To cure a nitwit villager, players must turn them into a zombie villager first and then cure them
For some reason, doing this turns them into regular villagers instead of turning them back to nitwits.
13. In Bedrock Edition, every baby villager has a 10% chance to become a nitwit
14. Unemployed villagers and nitwits cannot be traded with
You can place a job block near an unemployed villager to give it a job, but nitwits will never be able to have a job.
15. To turn an unemployed villager into a different profession, remove its job site block and replace it with the desired profession’s job site block
Unemployed villagers can be directly encouraged to take up a profession by simply providing the right job site block.
16. When a villager wants to move out, a thought bubble appears above their head and they ask the player if they should move
If the player lets them move, they will pack up their belongings the next day and move out the day after.
17. Villagers will randomly sleep during the day and will go through blocks while doing so
The speeds at which they slide out of the house vary.
18. The key for breeding villagers is to create enough beds for every villager plus one
Villagers generally won’t breed unless there is an extra bed available for the child. Place the beds, including the extra one, near your villagers.
19. Villagers need beds to breed
Make sure they have beds which they can sleep in and provide them with food.
20. Resetting a villager’s trade in Minecraft is simple
Villagers who have not been traded with will automatically reset their trades every once in a while. As soon as the player trades with this villager, they will lock in their trades and never be able to switch.
21. The green robed villager is the nitwit villager and cannot have a profession
22. The fletcher is the rarest villager job
You can get arrows, flint, bow, and crossbows from low-level fletchers.
Knowing these possible reasons, you can troubleshoot why your villager is not accepting the job you want them to have and take the necessary steps to resolve the issue.
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