When Stan Lee and Jack Kirby thought about making a weaponized robot as a threat against the mutants of X-Men, they decided to make it look visually big and psychologically dominating. X-Men were nothing but humans with unique powers, but on the contrary, these giant Sentinels were supposed to look anything but human, so they were given this menacing massiveness that can dominate the readers even just from being in the pages of a book. And for years, it did serve its purpose, until the modern comic era and the film adaptations ran several upgrades on their design and their functions.
When Stan Lee and Jack Kirby thought about making a weaponized robot as a threat against the mutants of X-Men, they decided to make it look visually big and psychologically dominating. X-Men were nothing but humans with unique powers, but on the contrary, these giant Sentinels were supposed to look anything but human, so they were given this menacing massiveness that can dominate the readers even just from being in the pages of a book. And for years, it did serve its purpose, until the modern comic era and the film adaptations ran several upgrades on their design and their functions.