I recommend using Notion and its personal CMS template for maintaining records on people. It's hard to remember children's names and gender sometimes, especially if don't meet them or talk to them that often. Sure it might seem like you don't care enough to remember, but if you are the sort to never remember anything, like me, then it helps a lot. It's better than saying "Sorry. I forgot" time and time again. At least this way you're making a conscious effort.