Nene Leaks was trending for dating 3 months after her husband's death. Far too many opinions were given.
The world, your family and friends like to have a timeline as to when you should meet someone, could it be they're ready to move forward, and from a death it doesn't mean they've forgotten about what you had with that person.
To include myself, after the death of my husband, my grieving process lasted long than it should has looking back. Could it be age as a factor? or do a lifestyle on someone's arm is a big deal? I think the desire of compassionship outweighs most reasons.
There is no reasonable time to start dating, it's when you feel ready or not.