If you’re a teenager sex should be avoided for several reasons. First and foremost is the difference in the definition of love between a teenage boy and teenage girl. For the girl the definition is much like the dictionary definition. For the boy it gets more confusing and generally fits the definition of lust. Lust is not love but for the boy it is almost synonymous. Second is always the concern about pregnancy. Condoms are only 80% effective and them only if warn correctly. There are other ways to cool a teenage boy’s ardor without having intercourse. You should never have sex to prove your love for someone. Teenage boys will say to you; "If you love me you will have sex with me," or something to that effect."
As an adult over 18 your more mature and legally entitled to a sex life should you want one. You not your parents control your destiny. Once again at this age you are still dealing with boys that confuse lust and love so be careful.
As you get older sex does become part of a relationship as you are looking for a compatible partner. Since sex is part of married life having a compatible sex partner is important.
Here again it is your choice as to when to have sex. What are your values? Do you have sex on a first date or do you wait until a relationship builds? Guys looking for a wife won't mind waiting while those looking for just a good time will want to have sex as early in a relationship as they can talk you into it.
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