Such an important question!
Yes. Totally okay to do yoga every day. It's really important to mix in other varieties of training. Even if it's just a more strength and stability focused yoga practice a few days per week. Some very basic weightlifting is always good a couple days per week.
One person I would definitely recommend listening to is Jill Miller if you haven't already. She was pushing yoga every day, contorting her body into poses that were seen by her yoga community as 'amazing'. And then she had a hip replacement at 45 because of it. She started the Yoga Tune up brand and brought soft tissue mobility and self massage into the yoga world. She is an incredibly smart woman and Everyone who does yoga and exercises in general should listen to some of her stuff.