@Mindy37
Besides the "trust" factor :
I sometimes host guests for "long term" which are also on small budgets.
Or do not know how long they have to stay, because waiting for a possibility to travel (Corona restrictions...)
They book 1 week and then we extend the reserveration every week (use "change option").
I manually recalculate the pricefield in the extending form if stay is longer 4 weeks (monthly discount applies)
BTW Disadvantage for guests is paying higher Airbnb Service Fee percentage, as percentage is significant lower (approx. 4%) on prebooked "long term stays".