Simple share plan

Hi, I’m wondering exactly how the simple share 50 plan works? I have four family members and each of us currently own our phones. If I sign up for the simple share 50 plan, do we share the 50 gb of data or do each of us need our own simple share plan?

Each line has it's own 50GB added to the pool on Simple Share so 200GB all together if moved them all to that plan. With 4 lines the family part kicks in that you would save $15/mo per line as long as they are all on Simple Share or Peace of Mind plans.