The Bible implies strongly that marriage should take place shortly after puberty.
The Virgin Mary was almost certainly a teenager when she gave birth to Jesus Christ (probably aged 14–15 years).
Some people believe that this is impossible, as no modern-day American father would marry off his daughter at 14, but we should NEVER read the Bible from the perspective of a modern-day American. Why? God is NOT an American, and American values are not necessarily Biblical values. Just because something is very American, that does not mean that the Bible approves of it.
Throughout most of history, women married at the ages of 14–15 years. This may be very un-American and stigmatized by American culture in 2021, but modern American culture is an anomaly. Throughout most of history, it was normal for young people to marry as teens.
EZEKIEL 16:7–8 I have caused thee to multiply as the bud of the field, and thou hast increased and waxen great, and thou art come to excellent ornaments: thy breasts are fashioned, and thine hair is grown, whereas thou wast naked and bare. Now when I passed by thee, and looked upon thee, behold, THY TIME WAS THE TIME OF LOVE; and I spread my skirt over thee, and covered thy nakedness: yea, I sware unto thee, and ENTERED INTO A COVENANT WITH THEE, saith the Lord God, AND THOU BECAMEST MINE.
In this passage, we see that God desires that marriage should take place shortly after puberty and sexual maturity.
The idea of waiting until you are 25–30 years of age is NOT Biblical. The modern American practice of delaying marriage until 30 has led to an epidemic of fornication, relationship breakups, broken hearts, STD’s, wedlock births, and other disastrous problems that could be easily solved if we allowed early marriage.