The closest analogy I can think of is this. You're on a cruise for the first time, and you visit one of the beautiful islands in the Caribbean. When you get off the ship, you are dropped off at a village that sells all types of goods - Hermes, Louis Vuitton, Gucci. How many of these items do you think are real and authentic?
NFT's are very similar. A lot of NFT's aren't real, or verified, or offer any real utility. (In the case of the Celebrity NFT, the utility is the free trip, not the artwork).
People can lose money because they believe they are getting a deal, or they just flat out click a fake phishing link via email or Facebook chat, and they lose the NFTs immediately (like money being drained from your bank account immediately). The worst part is that there is no customer service when you purchase, sell or lose a NFT.