We read in the book of Ecclesiastes: “To every thing there is a season, and a time to every purpose and for every work.” (Ecclesiastes 3: 17,) so when the Word of God tells us that “When the fullness of the time was come, God sent forth His Son ...” (Galatians 4: 4,) we know that there was a purpose in God sending His Son back then 2000+ years ago and not waiting until last year or last week even
Everything was in place, ready and waiting for Him. However, that cannot be said about the Jewish Nation, or the religious system of that time, can it? King Herod felt threatened by the news brought to him by the wise men from the East. Calling upon the religious rulers to find out more, they could show where and when “The King of the Jews” was to be born, but that only brought to him knowledge that caused him to act like a butcher in attempting to rid himself of any rival!
Going back a little we see that there wasn’t any room for God’s Son at His birth. Where were Joseph and Mary situated when the Precious Son of God came into the world – under the stars? In a stable? Who knows for certain? One thing we do know is that there was 'no room' for them in the Inn!
Very few appeared to be waiting for Him; like Simeon to whom had been revealed that he would not see death until he had seen to Lord’s Christ, and Anna “who spoke of Him to all that looked for redemption in Jerusalem.” (Luke 2: 38.)
The Bible doesn't say ' when the world was ready, but 'in the fullness of time, ... God's time!