As a mama who buried her 7 year old son 16 years ago, I must respectfully disagree with this. Believe me, in this depth of grief, you are certainly NOT concerned with "keeping it together" for others, nor do you feel intruded upon. I was so deeply grateful to see people I had not seen in years, even people I had previously had "issues" with - come to the wake AND the funeral the next day. My son was murdered, and it was front-page news. I received letters, cards, phone calls, and visits from total strangers...and every. single. one. touched my heart. There were names in the guest book that I didn't even know, people who came just because it was such an awful thing to happen. It meant the world to me - as someone else mentioned, to see that people had taken time out of their lives to come honor my precious baby. A complete stranger came to me after the service and pinned a little golden angel on my blouse. I have it to this day and I will always love that woman for that - though I still have no idea who she is.
Nothing, and I will say it again, NOTHING, hurts like the death of a child. The last thing you are thinking about is "why is that person here?" Please go. I am praying for strength for you, and for this precious family. <3