Excessive screen time at 3 is bad, and we do have evidence. Computers from the 80s we grew up with have nothing in common with today’s highly advanced skinner boxes. It has been so since the age of TV, but today’s tech is worse. They fuck up cognitive and social development really bad. Using screens from time to time is fine, but having a tablet in your face every waking minute hurts even adults.
On the contrary. It relies on the premise of segregating binaries, config and data. But since it is only running one app, then it is a bare minimum version of it. Most containers systems include elements that also deduplicate common required binaries. So, the containers are usually very small and efficient. While a traditional system’s libraries could balloon to dozens of gigabytes, pieces of which are only used at a time by different software. Containers can be made headless and barebones very easily. Cutting the fat, and leaving only the most essential libraries. Fitting in very tiny and underpowered hardware applications without losing functionality or performance.
Don’t be afraid of it, it’s like Lego but for software.