Who, exactly, are you blaming for this failure? Who's responsibility is it to track lost items? Who is in need of advanced technology? My simple answer - don't lose them.

It depends on the "Found" party turning them in somewhere. That often doesn't happen.

You tore your room apart looking for them, didn't find them, but just "know" that's where you left them?

btw, I've retrieved many items, so your "we never get it back" is factually false