Age is just a number, every individual is different.
Some people are still pre-pubescents/children at 14 others reach puberty as early as 9.
I started having intense sexual feelings as soon as I reached puberty, I know parents don’t want to acknowledge that because they like to live in the bubble that their children are innocent little angels till 18/21 but it doesn’t work like that in the real world, reality is very different from how we want it to be in our perfect lil utopias.
Kids are maturing faster and faster.
If I have kids I’m going to have their nikaahs performed as soon as they’ve reached puberty with partners their own age, I’d tell them to use contraception so they don’t get pregnant before completeing their studies and incase the marriages don’t work in the long term.
In our sex-saturated society where it is not consdiered wrong or shameful to fornicate, just telling kids “don’t do it because don’t do it” is not gonna hold much weight to them.