New to developing!

Why do we default to server side components? Because you can have zero interactivity, I've found that server side components are only good for reading information (not writing anything as that requires hooks). Why was next designed like this? Also, why can't server side components force rebuilds of client side components? for example - if you had an app like tinder why aren't all of the people you swipe on server side, but the actual swiping is client side, and owns the mechanism triggering server side rebuilds if that makes sense

Thanks for answering, just trying to learn on this developer journey!!