freedom is a privilege schools like mine should be able to do a MIUL because kids may want to eat first or maybe they want to eat second.Next, Socializing is a big thing kids need to be able to socialize because it can hurt the human if you aren't socializing as much plus children with poor socialization skill are less likely to form healthy intimate relationships as an adult and thyme experience peer rejection.
Eating, eating can be hard when you don't have enough time because maybe the line is very long or maybe your lunch has to be heated and it can take awhile to heat something up. In fact, kids may have an eating disorder so maybe they eat slower so it take awhile. Also, kids love recess because it's active you can talk and you can get outside. Another fact kids may need more time a recess to get out their energy because people have more energy than other kids that why school should do MIUL. Mix it up lunch is a great style for schools maybe you should try
it.