New Delhi, Feb. 2 -- Some restaurants in Tokyo, Japan, have sparked debate after introducing age limits for customers. Several places now restrict entry by age. Some now allow only people over 25 while others refuse anyone above 40, according to the South China Morning Post.

A few pubs openly display these rules at their entrances. One bar in Shibuya states that only guests aged 20 to 39 are allowed. It is meant for the younger generation, according to the place.

"Only customers aged 20 to 39 are allowed. This izakaya is for the younger generation! We cater exclusively to guests under 40," SCMP quoted its sign as stating.

The venue is known for its loud, energetic atmosphere. Around 90% of its customers are in their 20s. They spend tim...