Tell her she does not need to worry.....it is easy all you need to do for her is simple
-Buy her a hair cut kit like this one from Walmart or in the supermarkets in Kampala...I my self I have a similar one the same brand name.
http://www.walmart.com/ip/WAHL-Cord...b19&bucket_id=irsbucket013&findingMethod=p13n
-The good thing with this kind of trimmer is that it comes with many pieces... if you have let's say an Afro and want to maintain a certain length, then she may use like No. 16. She just needs to keep combing up wards and just trim.
-For very short hair she may use No.1 or No.2. The numbers are indicated on the pieces. The tricky part is the middle part of the head where the hair seems to be starting/ending from. She just needs to shave against the swirls will just brushing or combing using the small comb provided in the kit.
-Like my wife she uses No.1, as long as she is using one of the pieces the cut will always be even. No matter what she does she can not chop off a chunk of hair.(@ KaiaUG)
-If you want to shave a shinny head then she will not need the pieces, as they only help to maintain a certain length while trimming
-I have a cousin who came to my house and found me being shaved and decided to shave the husband. Within a minute or so she knew how to hold the shaver and it came out as if the guy had gone to a barber.....so Ladies be encouraged.
-Let her watch a couple of you tube videos on how to cut a black man's hair e.g.
https://www.youtube.com/watch?v=1kew6kLczt0
Key points
-She just needs a steady hand if you want her to trim you hair outline & sideburns (
http://i1.ytimg.com/vi/dgO7a8wznF8/hqdefault.jpg)
-To remember not to move the lever on the right side of the shaver using her thumb accidentally. It will change the trimming length.
-Remember to oil the machine and clean it frequently the tools came with the kit. Mine has served me for years without ever breaking down.
and that's all quick and simple...all the best to the future barbers......