I think hair typing comes in handy when people ask questions like how did you get your hair to look like that? How do you get it to curl like that? My answer is always it grows out of my head like this and if they're interested I share a bit of my regi. It helped when one of my staff decided to go natural because of me. She transitioned, big chopped, then said I wish I had your same curl pattern. She's 4c. I took the opportunity to talk to her about hair typing. The good thing is she's still natural. So to me, hair typing does have its place.
When it comes to hair products I'm thinking of me being high porosity with fine strands. Not the fact that I'm 4a.