@Paul1743
unfortunatelly Airbnb doesn't allow hosts to collect security deposits in cash directly from guests. They don't collect it either, they are just authorized to take it from the guest's account if the host file a damage claim report.
Some hosts make a video or photos before each guest arrival. It is simple if you only rent a room but if you rent a villa or the entire house then you would spend an hour on a photo shooting each time.
Damage claim resolutions can be solved in 1 day or a few weeks, it depends on the damage and if the guest accept to pay or not. involve Airbnb 72 hours after your guest declined to pay and be persistent. You will get an email from Airbnb about the resolution.