Passion comes from the Latin deponent verb patior: to suffer, undergo, endure. (Whence the phrase 'Passion of Christ,' which doesn't mean 'Jesus was passionate about stuff.')
Anyway, there are a whole host of value assumptions built into that "healthy" word you're waving around. If I'm passionate about painting and don't care about having a family, then I'm going to paint. I'm not obligated to have a family just because it's a social norm.