Trump craves constant attention and adoration (due to his severe personality-disorder) so you think he'd want a creature around him who would do just that.He doesn't need a dog when he has his WIVES to mistreat. Don Jr.s classmates in college said he was severely mistreated by his dad. NOW he's older and a chip off the old block.
Even Kellyanne Conway, the WH leaker, doesn't fawn over Trump like a dog would.