If two people get married, why can't the two of them live as cheaply as one? $($Check all that apply$)$

The IRS's tax rate is higher for married individuals as compared to the single$-$status rate.

Couples don't go out as much because the romance fades.

Each person has his or her own expenses for food, clothing, transportation, entertainment and so on$,$ which nearly doubles the cost of a single person.

Most restaurants don't allow people to split an order

When they have children, each child will add at least $$5,000$ per year in expenses, even without childcare.