There are airports which have something like this, but generally it's very expensive to maintain so many separate security checkpoints.
In the US, the Kansas City airport was originally designed and built before any type of security checkpoints were present in airports, as a series of horseshoe-shaped terminals. Now, each terminal is internally divided into groups of a few departure gates each, and each one has its own security checkpoint. This is extremely convenient for people coming to the airport -- when I lived there, I could arrive 45 minutes prior to my flight, knowing I would get through security and be at the gate by 30 minutes before departure (which is when boarding begins). On the other hand, there are very few amenities beyond the checkpoints; toilets had to be installed, and there are a few counters selling food, but only one area that I know of has a real restaurant available inside.
And it will almost certainly be torn down and completely rebuilt with a centralized single security checkpoint, because operating it in the current setup is too expensive.
In the US, the Kansas City airport was originally designed and built before any type of security checkpoints were present in airports, as a series of horseshoe-shaped terminals. Now, each terminal is internally divided into groups of a few departure gates each, and each one has its own security checkpoint. This is extremely convenient for people coming to the airport -- when I lived there, I could arrive 45 minutes prior to my flight, knowing I would get through security and be at the gate by 30 minutes before departure (which is when boarding begins). On the other hand, there are very few amenities beyond the checkpoints; toilets had to be installed, and there are a few counters selling food, but only one area that I know of has a real restaurant available inside.
And it will almost certainly be torn down and completely rebuilt with a centralized single security checkpoint, because operating it in the current setup is too expensive.