You might be able to find shorter ground cover like clover and things like creeping thyme that would be more fun than grass and still low risk of ticks. There are a bunch of herbs that reportedly are tick-repelling (lavendar is cool, I have some in the garden) but I would get an expert opinion before betting on that because ticks are no joke.
Our yard is around 50/50 garden vs grass and of the garden about half is edible. I'm pretty new at this so trying to learn how to work in the garden faster than it descends into chaos.