How long until I can make a Ultimate Showdown deck with all official cards?

I showed to my 12-year-old nephew, The Ultimate Showdown of the Ultimate Destiny.
He didn't recognize it:
>Aaron Carter
>Jackie Chan
>Care Bear
>Chuck Norris
>Black Knight (Monty Python)
>Benito Mussolini
>Chief Blue Meanie
>Cowboy Curtis
>Gandalf the White (he was confused with Grey)
>Jambi
>James T. Kirk
>Lo Pan
>Bill S. Preston
>Ted Logan
>Spock
>Hulk Hogan
>Fred Rogers
are we getting old?