@Ben-ProductManager as a sitter who thinks video calls are a great idea ; I would not necessarily want to do a video call through the THS platform as exchanging phone numbers /contact details outside of THS is invaluable early on in the process .
As evidenced on this forum by so many members unable to contact the HO/ sitter shortly before the start of a sit and not having alternative contact details to do so because these were not exchange at the time that the sit was confirmed.