[onionisafruit]

It is a thing. In America pressing charges is when you accuse somebody of a crime and ask a prosecutor to bring criminal charges against them.

[sneak]

Prosecutors exclusively decide who is charged. No charges can be "pressed" by a victim.

[onionisafruit]

Yes, in most cases it is the prosecutor's discretion whether to bring a case to a grand jury, but that isn't what pressing charges is. See Merriam Webster's definition[0].

[0] https://www.merriam-webster.com/dictionary/press%20charges