National Holidays in Japan & Coming-of Age Day on January 11

Japanese 11, or the second Monday in January is a national holiday in Japan.
We have 16 national holidays and vacations both in summer and winter here.
I searched about national holidays in the world in the net (I didn't check all over the world).
As far as I saw, the average is around 10 days, I think. 
The following is the Japanese national holidays.

   1.  January 1・・・New Year's Day

   2.  The 2nd Monday in January ・・・ Coming-of-Age Day

   3.  February 11 ・・・ National Foundation Day

   4.  March 21 ・・・ Vernal Equinox Day

   5.  April 29 ・・・ Showa Day

   6.  May 3 ・・・ Constitution Memorial Day

   7.  May 4 ・・・ Greenery Day

   8.  May 5 ・・・ Children's Day

   9.  The 3rd Monday in July ・・・ Marine Day

   10. August 11 ・・・ Mountain Day

   11. The 3rd Monday in September ・・・ Respect for the Aged Day

   12. September 23 ・・・ Autumnal Equinox Day

   13. The 2nd Monday in October ・・・ Sports Day

   14. November 3 ・・・ Culture Day

 　15. November 23 ・・・ Labor-Thanksgiving Day

　 16. December 23 ・・・ Emperor's Birthday

But this new year, we have 4 more holidays making up for the overlap of holidays on Sunday (substitute holiday). So we have 20 holidays in total.

So today is Coming-of-Age Day, we call "Seijin no hi (成人の日） in Japanese.
There are public ceremonies for 20 year old boys and girls in each cities.
After attending them, the young celebrate to become adults with their friends and families together.
There are many girls wearing special kimono called "Furisode(振袖）".
This long sleeves Furisode should be worn for only single girls usually.
So when you see a girl wearing it, she will perhaps be a single.
They have many troubles to walk with unfamiliar slippers named "Zouri（草履）.

We can enjoy many colorful and beautiful kimonos on this day.