Unless your invitees are sitting in front of their computer at the time you workout or if they want to look at it later for whatever reason .............. I don't understand why Garmin Connect Mobile iOS doesn't allow us to send an invite to a text / cell number as well !!??
This would not only allow someone to view your activity on their cell but would also notify (whoever you wanted) that you were going out on a bike or run or whatever at that exact given time (not later whenever they got to or were at their computer).
It CAN be done (so don't use that as an excuse). Road I.D. iOS app does this very well.
Please allow this feature.
Thanks!