The flow of thought in the list moves from personal to church life, from domestic to official functions. Implicit in this movement is an important axiom: what one does or is in one's private life has consequences for the church.
You can use your health insurance in another state, it just depends on whether it will be considered in or out of network. If it is an emergency, most companies will treat it as an I network claim.
you can stay on your parents insurance as long as you are living in the household and do not have insurance of your own or a vehicle titled in your name. And in some states you can still be on their insurance even with a vehicle titled in your name. It depends on the company and what state you live in.