Not everyone who helps is in the Circle, and a task should not have to wait for a sign-up.
Sharing a task
Any task on the family list has a Share button. Tap it and the link is copied, with the note Link copied! Text it to your family. Paste it into a text or an email to whoever you have in mind.
What they see
Whoever opens the link sees a page headed Help with a family task, marked Requested by your family on SeniorThrive, with the task underneath. They type their name and tap I'll take this.
They do not need an account, a password, or a seat in your Circle to do that.
Afterwards
The task shows who took it, so nobody does it twice and nobody has to ask.