I started having sex pretty early myself and I knew a number of girls who were having sex 'early' too. At the age of 14 wasn't uncommon at all. I knew a lot of young girls/women who had sex with older guys, because they were more 'experienced' compared to fourteen or fifteen year old boys. This might have had something to do the music and drug scene we were involved in.
Where I live 'kids' have sex, when they feel like it and nobody appears to concern themselves with the 'rules'. They make them up as they go along.
The British middle class have always had a
'thing' about sex and a horror of what the lower orders actually got up to. The puritan, progressive, liberal/left in the media, especially the 'feminists' have an agenda. They are exploiting women in order to get power for themselves. It's about power and a platform. All they want is to push a lot of men aside, so they can grab their positions, and they use sex as the battering ram to smash the patriarchy. It's not about dismantling the power structure at all, it's about replacing male bosses, with female bosses.