I say much about other fields but many of the best software engineers are self-taught.

The problem with formal structure is power hierarchies, something you'd want to avoid when possible.

Either way abolishing school and abolishing universities are different questions. Schools are much more oppressive, but arguably someone needs to look for the kids when parents are at work and a child unlikely to be able to teach themselves counting as opposed to an adult who can learn any academic discipline by themselves with access to internet.