Ja, Paul ran into that in regard to eating meat that had been offered to idols, didn’t he? He seemed to think there was no problem with that, but not to look down on someone who did have a problem with it (I Cor 10:23)
23 m“All things are lawful,” but not all things are helpful. “All things are lawful,” but not all things build up. 24 nLet no one seek his own good, but the good of his neighbor. 25 oEat whatever is sold in the meat market without raising any question on the ground of conscience. 26 For p“the earth is the Lord’s, and the fullness thereof.” 27 If one of the unbelievers invites you to dinner and you are disposed to go, qeat whatever is set before you without raising any question on the ground of conscience. 28 But if someone says to you, “This has been offered in sacrifice,” then do not eat it, for the sake of the one who informed you, and for the sake of conscience— 29 I do not mean ryour conscience, but his. For swhy should my liberty be determined by someone else’s conscience? 30 If I partake with thankfulness, why am I denounced because of that tfor which I give thanks?
We have good friends who are Brethren, who don’t celebrate Christmas and pretty much disavow anything that wasn’t done by believers in house churches in the first century or so. We do celebrate Christmas and Halloween–but avoid criticism of them because it just wouldn’t help them at all.