Which do you think will give you a better product or service?:

A) I confiscate your money under threat of locking you in a cage. I decide what you will get in return (if anything). I prohibit any competition. I’m the only option allowed.

B) You keep your money. You decide how, when, and where to spend it among many competitors offering to sell to you.

A) is the way of “government”. B) is the way of the market.
Refer back to this when you ask “but without government, who will do X, Y, or Z?“