Well, your 2nd point is a little complicated, Sal
That brings up the other class of monks, the biaoyanseng. These are the monks that go on the 'official' Shaolin tours. Technically, they are a subset of wuseng, although they tend to be contracted strictly for the Shaolin stage shows. Now, what delineates an official show is delicate. Abbot Shi Yongxin has been trying to clamp down on all shows that bear the Shaolin name, and rightly so. However, that's not a simple task, and another subject entirely.
The rise of the biaoyanseng as such has been relatively recent. The first generation of touring wuseng had to be pretty hardcore because Shaolin was harder then. They had to answer challenges and live with greater hardships than the newer generations. The biaoyenseng are much less committed. They're really just wushu performers at heart. The 'official' ones do take vows, usually under Abbot Yongxin so they're usually Yan generation, but the vows are only of a honorary nature and the title should be discarded after the tour is done. Of course, they don't necessarily do that.
Anyone who's done any Chandong Shaolin can separate the biaoyanseng out pretty easily. However, they usually have all the traditional forms. They might not know the applications, but they have the forms.
Well, there is a distinction
Taoist sex rituals and prostitute-using masters aside, a Shaolin monk is by definition, a Buddhist ascetic. That's quite different. If they intend to be authentic in their Buddhist practice, they need to observe their abstinence. Therein lies the rub.
LFJ's Chan City post above was accurate for the post-CR generation, but you've got to keep in mind that Shaolin took some huge hits during the last century. From the ROC to the PRC, Shaolin was literally decimated. So there were a lot of compromises made. Shi Suyun's situation (who is technically my Sigong, although I only met him once) is often cited because Suyun was so well respected. He survived the CR. Most monks in China were forced back into civilian life, literally forced to marry during the CR. Many compromises were made. That was when Suyun married and had kids. But times are different now. Shaolin is very affluent, one of the richest temples in China. They can now afford to be picky. They can afford to enforce the doctrines of Buddhism on all their monks. In my conversations with Abbot Yongxin, it's clear that he's trying to move in this direction, however, it's not so simple. He can't just kick out all those meat-eating, booze-drinking, hoochie-chasing wuseng without reprisals. After all, they did help to maintain the order during some very dark times. So Shaolin is in transition.
My beef, and there is a pun in there, comes from being a practicing Buddhist prior to becoming a Shaolin disciple. If you're going to be authentic in your Shaolin practice as a member of the order, you've got to follow Buddhist precepts. Now, this doesn't mean that anyone that practices Shaolin must be Buddhist. Not at all. That's like saying I have to be Jewish to enjoy a bagel. But anyone claiming to be disciple of Shaolin should be working on being Buddhist, on keeping those vows.
Why bother taking vows if your not going to keep them?