I believe your are referring to the "petitions", not to be confused, as Dominick pointed out, with Mass Intentions.
In our parish, the lector writes their own petitions. I never realized how challenging this was until it was left up to me.
Having listened to so many mass petitions over the years, there were some I wanted to avoid, like "For world peace!" There has not been peace since Adam & Eve sinned in the Garden of Eden. That said, the Church does pray for peace and, as you noted, an end to abortion.
Last week, I found the Pope's petitions listed on EWTN and added them to my list. Since it was my turn to write the petitions, I borrowed 3 from the pope and added one of my own. It was Prodigal Son Sunday so my intention read:
For those Catholics who have wandered astray, may this Season of Lent be a time of reconciliation with their faith and a return to the church.
Father rarely says anything but he said the mass petitions were especially good. (Thank you, Holy Father!)