If someone was born on January 1, 2001, would he be the oldest person born in the ‘00s?

No, the 2000s and 21st century both began when 1999 became 2000.

Of thousands...............

I think first of ayear,is a day other,so no.

I hope that you know that 2000 is a year

Amost..........................

To troll or not to troll. That is the question.

No, go a year back (January 1, 2000 at 12:00.00 am), that's the oldest person in the 2000s.

Obviously yes, they should be

No because anyone born in the year 2000 would also be born in the 00s.

No, 1 year before.

No.

The oldest person born in the 00s would be born on Jan 1st 2000.

Clue .. 2000 to 2001 was ''year number 1'' in the 00s

So, someone born on 1st Jan 2001 was born on the first day of ''year number 2''.