The world is full of creatures that eat people.
And the vast majority of them are microscopic.
Besides, actually meeting a live dinosaur might be pretty disappointing. After all, the planet has no shortage of neat critters, and except for the cute ones, no one seems to care all that much. I'm the kind of person who thinks Norway Rats, pigeons, English sparrows and cockroaches are more interesting than Pandas, for the simple reason that they are under no danger of becoming extinct.