What is the tradition behind giving a key to a person on their 21st birthday?
547283
This tradition dates back to the times when children lived at home unil they married, and were very much under the control of their parents. The voting age was twenty-one, when 'adult status' was officially conferred, and as Whickerman advises, a front door key was issued for independent access to the family home.  As an adult, you were considered free to come and go as you pleased rather than according to your parents' wishes. Thus, you were now entitled to "the key of the door".  (It's a British tradition.)
1021881
Each State has there own rules governing. Has he been assigned a PO yet. That is the person that holds the key. You should have a local aid who can answer these questions for you. Look in the community part of your phone book. Good Luck
818004
The newspaper idea (above) is actually pretty good... you could set up a time capsule together.  Get the day's newspaper, maybe some magazines.  Write letters to each other to be read on your 25th anniversarry.  Take some photos, stuff like that.  Seal it in a pretty container (like a large, attractive popcorn tin maybe?) and swear not to open it until your 25th.\n\n\nPaper could also mean:\n\nletters or poems\nbooks\ncoupons for good deeds\ngift certificate to a great restaurant (and a promise for a great date!)\nPlane tickets / hotel reservations for a trip\na deed for a great condo :-p  don't we all wish!
527574
21......Really. Its a long story. Ask if you give a schit.
918015
hey i m sure 21 is a nice birthday to celebrate with alcohol..get his friends together and organize a surprise party during the weekend. Candlelight Dinner for both of you away from the usaul places could be nice.  As a present i m sure he will like anything you get him ex. jewellery (watch..bracelet) clothes, books ..photo frame of a nice memory of you two together is always very appreciated
415424
HAPPY BIRTHDAY IN ADVANCE!!!!\n\nGO CRAZY!!!!  Do whatever you want or whatever the law doesn't want you to do... sike i don't want you to get introuble or anything.... but go ALL OUT!! invite everybody......\n\nOR you could just cry if you want to cause it'll be your party
756097
For what ?there birthday?
41680
If they are older...\n\n"Congratulations on the XXth Anniversary of your 29th Birthday."  (Easily modified to fit pretty much any age.)
514618
Very commercial and still a reminder needed for some .Asking parents regular for help and even saying thank you ,is great . But a day that you give to just that one is really nice .It should stop you from doing it more , but still a special day , as a birthday .Even though I no long have birthdays ( I refused to age pass 35 yrs.), my children will call or come over and now say Happy unbirthday ! So they are undoing the years ! As far as commercial use , they have gone over board .Valentines  was a card . Then came flowers , candy , gifts  and what a cut in your pay check !There are some  people that will argue just before the date and make up after the date past .REALLY ! One guy told me it was cheaper to date all week than to take his girl out on Valentines Day .Besides half off the next day and he would say I bought this yesterday ,but we weren't talking . LOL
751524
its just another way of saying birthday
466706
The lock and the person to open it.
58665
A Keyring. He needs it, he uses it and will always remember who gave it to him.
809572
My birthdays in December too!!!! lol Anywaz I think u should celebrate but nothin 2 big cause come on 21 is the age you gotta make a big scene and act crazy!!!! Have ur self a lil suttin suttin but nothin u can't top next year!!!!
309406
tell her in secret that she's your birthday gift...
575707
do something you enjoy doing,you know yourself better than i do ,pool party mite be fun,i got drunk,but i am over 21.and my birthday is in January,so its to cold to do anything outdoors,which is what i am into during the summer .but it has rained allot here lately . but i think you can think of something.have fun and have happy birthday.
220699
A good surprise party would be to get the person when they are just waking up. Have everybody that, that person knows outside waiting and then once he or she is in the same room have them all scream and shout "Happy Birthday" Also as the day goes on have more surprises such as a gift given every hour, you could also get them concert tickets that same day for there favorite artist. Oh and when your at the concert dont tell them until its finished, and say i have you a once in a life time chance to meet the artist. lol this might be expenisive but hey if money is no problem what the heck throw them something they will remember. If money is short do it the old fashioned way and gather friends and relatives together to celebrate the Bday. HAVE A PARTY!!!!!!!!!
112637
They probably have to pick the 28th to be their birthday every year, and REALLY celebrate when it's a Leap Year.(and they can lie and tell the truth about their age at the same time...ex. a 20-yr-old can say they just celebrated their 4th birthday!)