"Requires Approval" option for tickets

Can we please have the ability to toggle approval for a ticket sale? This is because (a) sometimes we need to reach a minimum before an event can be confirmed to run (b) some events require attendees to have certain qualification/experiential backgrounds. In situations where we would need to reject and refund an attendee, the stripe fee is still payable. The hold on a card lasts around a week, giving us ample time to approve the registration before it expires and save us and attendee from any inconvenience/expense.