There’s a possibility that Dick Grayson would still feel emboldened to solve Gotham’s growing crime problem, but he probably wouldn’t become a Boy Wonder and don the tights with Batman.
Of course, in this butterfly effect scenario, who is to say that Dick Grayson’s parents died as well?
Instead, he would likely join the local police force or join the crime division as a detective or something else, without any real physical confrontations involving punching and kicking criminals.
Maybe in the rippling effect, they also found themselves living as well.