I do if it's a direct question of if a conversation leads to it. I think we're required to say it if it's directly asked and prudence would dictate whether to bring it up at other times and moments.
From what I've experienced most people in modern days biggest hangup with The Church and why they reject it is it's teachings on "adult morality" corresponding to 6th and 9th.
The vast majority of people are pro-death/abortion, pro-fornication pre marriage, pro-adultery between consenting adults (never mind getting the one who is betrayed consent for some reason many don't care about that part), pro-birth control, and pro-sodomy/same sex relationships is about 70 pro/30 against, that if you try to insert moral teachings and reject these worldly perverse things they will hate you and The Church for daring "entering the bedroom" and will never give it the time of day. There's some people out there who believe all the theological things about The Church but reject some or all of the moral teachings of The Church on these matters.