Yo do need to keep an eye on these little villagers. If things seem to be getting a bit hard, they like slacking off the job. They just need to be shown who is boss.

Now that you have got villagers with building skills, you should find the 3rd hut being started soon (I hope)

There are also lots of other cute actions that the villagers do. When things are working well, it is fun to just select a villager and follow them to see what they can get up to