Our typical float plan:* Heading north, see you this fall.* Since we usually don't know where/when/why we end up where/when/why we end up, any kind of plan with more detail would require maintenance of that plan, an effort not easily achieved in some areas.
We do contact close family from time-to-time to catch-up on happenings.* But depending on our family (or friends) to alert rescue agencies to come to our aid in some unknown area at some unknown time is not dependable, or efficient.
For immediate assistance, we have a good complement of safety equipment (including immersion suits, 406Hz EPIRB, liferaft, etc.), and we have confidence in the Coast Guard's communication system along the way.* In addition, there is frequent and regular nearby commercial traffic that can relay should we be locally isolated.
We almost always seem to make the same jumps and travel at the same times with other boats of similar speed (even if they are*not a buddy boat of ours).* We end up meeting new friends everytime we take the long cruise.
Perhaps we are being inconsiderate of those left behind who will miss out on our adventure, but there is no value in having them worry about our well being should we be unable to*keep a communication schedule for whatever the reason.