Nerys Myk wrote:
Actually the Holodecks allow for crossover as an integral part of the setting, that's what they're there for! So sure, there could be a "Lord of the Rings" Holodeck program, this is not crossover, as the worlds simulated in the Holodeck are not real relative to the Star Trek setting, but any characters stuck in the Holodeck don't know that.
The problem is the idea that a child would be trapped in a holo program for most of his life and that nobody would notice that a child was missing and there was holo program running non stop for years.
Maybe he was the only one left alive on the ship, and say for instance the warp drive was destroyed and only impulse engines are working. The ship has one holodeck for family entertainment, and something happened to the child's parents.
Stranger things have happened in Star Trek.