What if....
Verses 1-10 set up verses 11-12 by introducing all of these sorts of people...older men, older women, young women, younger men, and bondservants. Furthermore, what if Chapter 1 sets up Chapter 2? I think we have to read these letters as one continuous message and not necessarily extract a verse from its context. Not saying this makes it definitive of the meaning of "all men", but just some thoughts I had as I was reading the text this morning. At the very least it paves a path to show how someone could come to the reformed conclusion.
Titus 2:1-10
"But as for you, teach what accords with sound doctrine. Older men are to be sober-minded, dignified, self-controlled, sound in faith, in love, and in steadfastness. Older women likewise are to be reverent in behavior, not slanderers or slaves to much wine. They are to teach what is good, and so train the young women to love their husbands and children, to be self-controlled, pure, working at home, kind, and submissive to their own husbands, that the word of God may not be reviled. Likewise, urge the younger men to be self-controlled. Show yourself in all respects to be a model of good works, and in your teaching show integrity, dignity, and sound speech that cannot be condemned, so that an opponent may be put to shame, having nothing evil to say about us. Bondservants are to be submissive to their own masters in everything; they are to be well-pleasing, not argumentative, not pilfering, but showing all good faith, so that in everything they may adorn the doctrine of God our Savior."
Titus 2:11-12
"For the grace of God has appeared, bringing salvation for all people, training us to renounce ungodliness and worldly passions, and to live self-controlled, upright, and godly lives in the present age..."
Titus 1 begins with Paul's address to Titus who is greeting Timothy with the "faith of God's elect" and their pursuit of godliness in mind where he begins talking about qualifications for Elders within the Church. He then moves on to the topic of sound doctrine within the church. So for me, for Paul to jump to very discrete directions of overseers and teaching within the church to in verse 11 speaking all the sudden to every man, woman and child to ever walk the earth, seems a bit schizophrenic.