I cruise with my boys every year. I am 43 and my boys. I just go and there are always plenty of single moms, singles without kids, ect... I always have a great time. In fact I am leaving in less than two weeks with my boys 10 and 14 on the Mariner for a week and have met people online that are going. While there is merit to booking with a group, I don't think it is necessary in order to meet single women and have a good time. Let me know if you have any questions.
In fact I need your help and Divemaster too or anyone else that will support me to go here and vote YES!