I trim every couple of weeks, so it doesn't look unnaturally blanc, but also not like a rainforest. and I have a razor in the shower to shave my balls, becuse I don't like it when it stings.
usually I only trim my pubic hair, but sometimes, especially when I'm alone at home and I have the freedom to stay a bit longer in the bathroom I also shave.
Shaving however can get pretty itchy