This didn’t happen to my son, but to my younger brother, on his 6th birthday (I was 17).
So my mom handed out every invitation and some parents actually responded and made sure they were going.
The day came and nobody showed up. My mom was furious and my brother was so sad. My mom was busy calling the parents, but I didn’t care about them, to be honest; I just wanted to cheer up my brother.
So I called some of my closest friends, and I told them, it’s my brother’s birthday party, come on over, there’s plenty of food.
In an hour they were there and we had a blast, we jumped in the bouncy house, and I taught my brother how to play FIFA, he opened his presents, and my friends actually got him something on their way. We sang happy birthday and he started crying and hugged me and we blew the candles together.
He forgot all about the people that didn’t show up and he slept like a baby.