Forcing children to marry before puberty is absolutely wrong ,but Society has set a standard that is very high compared to what it was biblically when girls or women young women with marry at the age of puberty which is different for every person ,but could be as as low as 12 years old or so, and yet modern society thinks 20 years-old is young...
meaning they expect young people to somehow live through the highly sexual years of puberty and teenage years without sex. it's a little bit strange you got to admit . Maybe we got it wrong.
See
https://discover-the-truth.com/2014/07/01/minimum-age-for-marriage-in-the-bible/