DEAR ABBY: My son and daughter-in-law went through a lot to have a baby, but she had a miracle child in her 40s. The boy is now 12. The problem: She’s still sleeping with him regularly. She’s very cuddly and “smoochy” with him, and they use baby talk with each other. My wife and I are worried about his development and future. Should we be? Is there anything we, as grandparents, can or should do? We’re not comfortable bringing it up in conversation. -- DOESN’T SEEM NORMAL