This rule states that by dividing your own age by two and then adding seven you can find the socially acceptable minimum age of anyone you want to date. So if youre a 24-year-old, you can feel free to be with anyone who is at least 19 (12 + 7) but not someone who is 18.

Is it legal for a 16 year old to date someone older?

In NSW, the age of consent is 16. If you are 16 years old and above, you can legally have sex (or do another sexual activity) with another person who is 16 years or older as long as you both agree to it. It is a crime for a person to do a sexual act with another person who is under 14 years old.