Yes they should be blessed. A brochure says its effectiveness is based on the degree of confidence the sponsor has. Life is long so be patient. My older sister is converting this Easter. She is in her seventies.
It only took her 50 years of being married to my Catholic brother in law, and having several brothers who have been catholic for that long. I suppose we could have been better role models for her. Some of my siblings are still lapsed catholics. Now if only the rest of the family could follow her lead.
Trying to spread the faith is tough in this day and age. Most folks are turned off from any form of evangelism. I try to plant a thought each Christmas or Easter with a simple email just to remind folks of what its all about, that its all real and true. Everyone knows the stories about Christ and the Bible, but many just feel that it does not apply to them or they are just works of fiction.
Remember to say the associated prayer every day, "Most Immaculate Heart of Mary, pray for us sinners, now and at the hour of our death. Amen"