My Kids are only 3 and 2 months old, my 3 yo has been on 3 overseas trips and numerous domestic ones (we're from Australia), most involve theme parks.
I NEVER went on a single vacation as a child. My first real vacation was when I was 20 and I went on a solo trip to London, the year after I visited
Disneyland (2003) and have been back to either WDW or DL every year or two since.
I love that I can involve my kids, I have had people say to me and my Daughter that she is "spoiled" and "very lucky" to be going on so many elaborate vacations (WDW is over 20 hours away) but the way we see it is that we work very hard and WE enjoy our vacations - the kids are just along because WE enjoy it.
We already make sure we tell her that not everyone gets to go on Vacation, but we save hard and don't do things on weekends etc like other families do so we can have these wonderful experiences once a year as a family.
I think your child will be fine. And TBH I don't find a value that much different from a Moderate or Deluxe in terms of service, they all have such fantastic CM's in fact, sometimes I think the values have BETTER CM's than the deluxe resorts do. Yes there are more amenities but I don't think she will feel "less entitled" by staying at a value than a deluxe - it's still WDW after all.