One obvious complaint about the Holodeck is that there’s no way the starships would ever leave on a mission, or finish one. Either everyone would be engaged in separate synthehol-fueled orgies with multiple simulated partners and they’d never get under way, or, they’d just “get lost” on the way and pull a crew of the Bounty thing.
“The replicator statistics show this crew of 2000 synthesizing 800 gallons a day of Gatorade, sir.”
What is even worse is when those pesky holodeck characters gain sentience, cross the border illegally, and then demand all kinds of accommodations!