When to attend the funeral, the main reference is as follows:
First, local customs. Under normal circumstances, the date of the funeral will be 3~7 days after the death of the deceased.
Second, the religious belief of the deceased. Non-believers have strict requirements about when to attend the funeral. For example, Buddhism believes that lucky people can ascend to heaven soon.
Third, the psychology of seeking relatives. Whether the closest relatives and loved ones are at home, whether family members talk, etc.
Fourth, feng shui superstition. Family members or locals, whether they have feng shui superstitions, etc.
As for good and bad, personally, there is no such thing as "good" or "bad", just for the living. If relatives are still in grief, finding a funeral company can save a lot of trouble and better appease relatives and their emotions.