Hi designs
Yes we are free to choose but our choice is important it shows where our heart is.
When apostles preached God's word in other cultures did they then make-over their idols, practises and celebrations and stuck Jehovah or his son on them?
Acts 19:19 (New International Version)
19 A number who had practiced sorcery brought their scrolls together and burned them publicly. When they calculated the value of the scrolls, the total came to fifty thousand drachmas.
Acts 19:26-27 (New International Version)
26 And you see and hear how this fellow Paul has convinced and led astray large numbers of people here in Ephesus and in practically the whole province of Asia. He says that man-made gods are no gods at all. 27 There is danger not only that our trade will lose its good name, but also that the temple of the great goddess Artemis will be discredited, and the goddess herself, who is worshiped throughout the province of Asia and the world, will be robbed of her divine majesty."
Tradesmen that made a lot of money out of pagan practises had reason to try and stop Paul because they were losing their trade over Pauls preaching God's word and way.
How much would tradesmen lose if the world decided not to celebrate Christmas or Birthdays?