The age thing has nothing to do with whether D1 athletic directors entertain lacrosse. There are only two reasons for a major conference school to add a sport. You can be competitive to win conference or NCAA and then money. If lacrosse can add some cache to alumni pride on the giving side or attract full paying students. Lacrosse is more the second. One wonders why ACC SEC or Pac 12 schools are not moving...at all. Maybe the D1 administrators see lacrosse as better suited for a club sport rather than a varsity one. Same tuition paying kids and a lower budget to support them. The reasons for not going have more to do with dollars than with making the numbers work on the women's side. Every athletic department is happy to add women's sports. Those programs have higher graduation rates and team GPAs across the board and generally have fewer off the field problems. Boys lacrosse is known for trouble, whether that is fair or not.