Minor "Love"?

In Kerala, Instagram reels with couples young age photos, from the time when they're lovers or when they got married are trending. In some, the couples were both in their teens, which is perfectly normal. In some, the guy is in late teens, maybe in college early years and the girl is of high school age, which again, I think is normal.

Significant number of reels are of 18-year-old, barely legal girls marrying 30-year-old guys, which while perfectly legal, I felt it is weird. I mean, a 25-year-old working woman marrying 35- or 45-year-old guy is not that weird, because they still may have common interests etc. But what does a girl who is barely out of school, have in common with a guy in his thirties. I have heard of this happening normally, mostly in poor/ lower middle class families in Tamilnadu

But in a major chunk of such reels the guy is in mid-twenties and the girl is in mid-teens, like 25,26-year-old guy with 15,16-year-old girls, which is not only weird but almost illegal. Also, the probability of a 25-year-old guy having 15,16-year-old girl in his friends' circle is quite limited. I have not come across such "love" stories in Tamilnadu in my circle, but then my circle is quite limited. Have you come across any such love stories?