This is a great feature of timeshares. Folks in the US generally take fewer and shorter vacations than most any other "wealthy nation," and owning a timeshare is a good way to help nudge one to take more and longer vacations. That said,
DVC is far from the only decent timeshare in the world, and it is one of the most expensive to own and use.
I am already having conversations with my kids (24 and 26) about these ideas---about how we as a culture tend to over-identify with our work lives, and under-value our own well being. It would not be a bad idea to have that conversation with your daughter, and to make sure you're inviting her (and any family) along on many trips, whether Disney or not.
For example, I have a wednesday-to-wednesday week in a 3BR at Wyndham Park City coming up this summer. Both kids and their partners are invited for as long or as little as they'd like to join, flights and other major expenses on me. If they come for part or all of that, great! If not, I'll have a very big condo to roll around in!