I have very primitive sewing skills, I only use it to darn socks and re-sew holes, sew on buttons, etc in clothes, and yes little items for my youngest for her barbie and polly pocket dolls (blankets, mattresses, pillows, simple outfits).
My youngest has been bugging me to show her how to sew, but I honestly don't have time. This week when I visited my ex's house there was a sewing machine set up, and apparently she is learning how to sew! I am so glad because she is always thinking of new things she wants for her barbies (she watches youtube videos of various "hacks") and now will be able to make them herself.