Japan is witnessing an expansion of businesses catering to solo customers, including restaurants and even karaoke lounges targeting patrons who value privacy and minimal human interaction.Some ramen noodle shops and yakiniku grilled meat restaurants, which customarily serve families or groups, are switching gears to focus on the individual customer who enjoys dining alone without distractions from staff or other patrons.Service industry insiders believe the trend reflects an effort to address diversifying consumer tastes amid the country's graying society, declining birthrates and protracte…READ FULL ARTICLE