If you’re ready to go gray but don’t want to cut your hair short, don’t want to sport a demarcation line (aka “skunk stripe”), and don’t want to use any dye to help you transition – then going gray with wigs could be the transition method you’ve been looking for!
Once your hair is pretty grown out, if the gray roots are long enough, just pull your hair back and use silver hairpieces for the rest of your transition.
It might be best to start with synthetic wigs, since they’re cheaper, and can give you an idea of whether or not using wigs will be a viable option for you.