alt Hacker NewsMaybe you live in a smaller space than I'm imagining, but if Dad's in the kitchen making dinner and other Dad is in the garage trying to figure out what he's going to need for the backpacking trip next weekend and the youngest kid is in the office with her headphones in listening to music while doing her homework and the eldest is upstairs chatting with his friends on Discord, then the options are
A) scramble around the entire house going "dinner in 5 minutes"
B) yell the same, hope people hear it, and negatively affect your mood
C) have some sort of system that lets everyone know with the tap of a button.
You might want to learn the concept of delegation. Kid in the office can tell their sibling who can then tell other dad.
Additionally, cooking in group is a great moment to have a conversation, much more than the actual dinner where everybody is chewing.