This topic has been discussed ad nauseam.
So, I will merely highlight the benefit of chastity/celibacy and the downside of sexual activity (outside of marriage). I don't even need to come at this from a religious perspective.
(1) STIs which can cause infertility and unwanted pregnancy are linked with sexual activity (common knowledge).
(2) There is a positive relationship with marital satisfaction and having fewer sexual encounters.
(3) Individuals that are sexually active report lower rates of sexual satisfaction in long-term committed relationships/marriage compared to those that are not sexually active.
(4) Ultimately, the only person you can trust is yourself, hence it would be wise to not gamble your body away and put your trust/faith in someone that has no obligation to you.
(5) Individuals that are not sexually active can easily cut their losses with someone they are talking to (particularly for women). There's no need to overinvest when they did not get any cookies and there's no guilt/remorse. In fact, it's empowering.
(6) Not being sexually active is a sign of discipline, which is considered respectable by most people.
(7) If you are not sexually active until marriage it's so much easier to confidently give your children advice that is authentic and comes from your lived experience. Alas, a lot of Somali parents don't discuss this with their children. I don't blame them. It would make for an awkward conversation. My parents were among that few that did. They were of the opinion that times are different, and you can't merely expect your children to read your mind, nor can you say that something is impermissible, it must be backed up with valid justification(s). I had a very controlled environment growing up and I think my parents did an amazing job conditioning me to make decent/ appropriate choices, I often ask myself if I would be letting them down by doing such and such, and if the answer is yes then I don't.
Bear in mind, I'm coming from the assumption that the person you end up marrying is also faithful/monogamous and not like
@menace.