This page could be stripped down if we make it more dynamic.
The page could have accordions for different section that progress automatically but can be manually opened / closed too.
Stage 1 accordion - invite
At first this accordion is open and the others are closed (but you can see their names).
- "Invite people"
- share link button
- NEXT
Clicking NEXT closes the 1st accordion and opens the second.
Stage 2 accordion - wait for invitees
- "Waiting for others to join"
- Show invitees
- "Enable push notification (if you want)"
- push notifications switch
- NEXT
Enabling push notifications here is much more tempting because there's nothing to do but wait and the value proposition of them becomes very clear as it solves your current problem of just waiting.
Stage 3 accordion - choose a date
Once three people join this accordion opens and the others close.
- "Once you see everyone here, choose a date"
- best dates table
- DECIDE
- "This will notify others who have subscribed to push notifications"
Alternatively we could use actual pages instead of accordions for each stage as this would allow easy analytics of the journey / funnel. Page transitions could be used to make it look like the camera is going down one page at a time.