I think that would be an excellent suggestion to require men to lose their virginity by 25. In fact, it would have been so good that they will not think of that. Rather, they would force men to keep their virginity for life if there is any way they can accomplish it. Short of that (if they have to marry, oh all right then let them. But we would really rather they don't), they will restrict it so any fun will be eliminated as much as possible.
I personally think all the rules that they are actually going to pass is grounds for them to fall. Only time will tell with certainty what they are going to do. All I can tell is what they are more or less likely to, and then it is possible that they will do even worse.
As for why I think a total ban on entertainment is on its way, I have noticed the trend since the beginning. They start out with the basic doctrines about the Trinity and hellfire, which do little to limit fun. From there, Booze Rutherford starts up the service (limiting time for recreation). He also bans the holidays. Later, they ban birthdays. Then they ban association with worldlings in work and school settings that includes entertainment.
Starting about the mid 1980s, they phase out congregation parties and gatherings. The rollerskate parties are first to go. Then they have many an article about picnics and wedding parties, effectively banning them also. They took the word "party" out of our vocabulary around 2000. The Feb 2004 KM had an article about 5:30 AM street work and 3:00 PM service, cutting even further into free time. So, the resolution is no surprise. It is another step toward a project that has been going on for nearly 100 years.
However, anyone who jumps ship can have all the entertainment that they want. On the outside, they cannot make rules and expect us to obey them. Hopefully it will make people think twice before joining or staying.