Even with natural hair becoming more popular these days, there is still a long way to go to define what institutes as "curly hair" or "good hair." When mainstream people think of curls, they are thinking of specific images.
I still wonder sometimes if I have the "right kind" of curls. I'm guessing not because they aren't big springing ringlets, but at the same time I've been told by folks of different cultures and walks of life that my hair is just right for me. People may admire the hair, but I raise my eyebrow whenever someone, especially a non-person of color says, wow I wish I had your hair. It always makes me think back to a girl I knew in high school who was Italian and Puerto Rican. She was really frustrated with her hair because it was tightly coiled and thick and if I remember correctly her hair had the same curl pattern as mine. I remember her venting to me once that she hated how it shrank, how it was difficult to manage and how she wasn't supposed to have this hair--that my hair was okay and looked cool for me but not on her because she was white and she's supposed to have "white people hair." Eventually she got a relaxer and she loved it. To this day she still gets them and keeps her hair straight. It's okay to admire, but if want to get my hair, you'll have to get the baggage that comes along with it!
I remember in college another girl, Hispanic, mentioned how envious she was of folks with curls. She had straight hair on the coarse side and when she said this I smiled and said really? Yeah she said. Like the big bouncy beautiful curls, big spirals. My smile faded. I realized she wasn't talking about having hair like mine. Because curls like mine aren't desired really, right? They are a nice splash to fashion maybe but in the end when folks think of curls they again, are only thinking about a specific images.
I guess in conclusion what I'm trying to stress is that approval really is pointless to seek in others. No one can love your hair for you. You have to love your hair for yourself and not other people. Compliments can be really great and make you feel good, but that cannot be the base of your relationship with your natural curls/kinks/coils.