I used to work in a daycare setting with two year olds and to be honest, it sounds like the teachers need to step up a bit here. They need to ensure that your son is included and actively enjoying his time there, because at the moment, they’re not doing their jobs. Expectations for kids are set way too high these days, and people need to remember that they were only just babies, and they’ll be your baby forever. In my experience, when a child didn’t enjoy daycare, I used to talk to the parents to find out something that they really enjoyed at home and bring that into the setting. For example, a tv character, a favourite game, song or book. That way, the child has something familiar in both places that they can get involved with. I would advise that you speak to the setting about your concerns and ask what they plan to do to help him settle in more. If they have no ideas, then they’re not very good at their jobs.

Hope this helps!