Londo makes a great point. Children have never really been a focal point of the religion. Other than a few books and now some videos, nothing is ever really directed towards them. Certainly those held in higher regard (Bethelites, missionaries, COs) typically don't have kids. It's rare that Brother "Has a ton of kids" is viewed as an example.
But, a cult doesn't operate to the good of its members. It uses its members to the good of the organization.
I'm not so sure they are concerned with the liability as many other religious organizations have figured out how to deal with youth groups. I think they just don't care because kids are a huge investment and one that may not pay off.
The whole organization is set up to recruit. They have always counted on larger numbers coming in than leaving. However, in most industrialized countries, that's simply not the case anymore. Couple that with kids being discouraged and the ones that are around being ignored with little to no growth from the outside, this is what you get.
It almost seems there is a faction within the WTS that realizes if they don't either 1) increase recruiting or 2) increase retention, they are in deep trouble. Of course, the default is to increase recruiting but the average JW is apathic towards recruiting so that really isn't going to work. They don't seem to understand that it takes much less effort to keep a customer than it does to get a new one. After all, the sale has already been done on the existing customer.