Thread:Love Robin/@comment-24859393-20170927224128/@comment-2245864-20170927231552

it is also stated that Pennywise specifically targets children as they are easy prey, Pennywise can attack adults but prefers weaker targets.. in other words the thing is a bully.. a monstrous killer, yes.. but a bully nonetheless.

Pennywise doesn't like a fair fight and will always go for those who are the weakest or easiest to intimidate, goes with its nature of being an embodiment of fear.