The other day, I met another mom and her kiddos for a playdate. Three months ago, three of those kids were adopted from Ethiopia. She has three biological kids as well, just like us. So, she was asking me about black hair care.
(For the sake of simplicity, I'm going to be referring to African-American and Caucasian as "black" and "white". I'm not referring to color of hair.)
Black and white hair, appropriately, are exactly opposite in their needs. "White" hair gets greasy over time, black hair gets dry over time. I only wash Maya's hair once a week and with conditioner only. I also moisturize her hair every 2-3 days, generally just with a 1/2 and 1/2 mixture of olive oil and water in a spray bottle. Because her hair has never been permed (aka straightened), the water just makes her locks look better, not frizzy.
The same is true for skincare. In the winter, I have a very hard time keeping Daniel "black"- his legs get grey from being so dry, even hours after lathering him down with lotion. If they don't put on lotion after bathing, they will look like little grey kids an hour later.
As far as hair styling, I highly recommend making room for that in the budget. lol (I'm a DIYer for a lot of things, but I don't have the hours to dedicate to my lack of skill.)