Require confirmation FROM registrant

I am looking to see if anyone has found a way to request a confirmation from registrants. This is a feature that Calendly has but I can't find a way to do it in Zoom for webinars (or meetings for that matter). See the image attached to how Calendly describe this. To be clear, I am not talking about the confirmation that goes out from Zoom on our organization's behalf. 

Ideally, I would like an email to go out to registrants 24 hours before the event asking them to confirm their attendance. I would love these to go into the event report in Zoom as CONFIRMED registrants, so this is a feature add. But for now is there a way to send an email asking them to reconfirm and receive an email when they have confirmed? I can see this is possible if I set up Zaps that add them to a group in my Mailerlite, then schedule an email with a link they can click to reconfirm that then automatically adds them to a new Mailerlite group called [Event Name] Confirmed, but that seems a HUGE pain to have to do for all our events. 

Do you have a workaround for this? If not, would you also like to see this feature added?

Any advice is greatly appreciated. 

The original issue: I have a recurring monthly free webinar. Typically people sign up to all of them but only attend a few. I have 450 registrants on the report but 100 show for the live event. I would like more accurate numbers of how many will actually attend.