You're right: At the age of 14, you can't get married, you can't vote, you can't have a job, you can't drop out of school, you can't sign a contract, you can't get a loan at the bank, you can't drive or buy a car, etc, etc.
Baptism is supposed to be even more important than getting married, yet the JWs will only require that you study their recruitment literature for 6 months and answer their quiz in order to qualify for baptism. Even the WTS discourages short courtships and engagements. They say that it takes a long time to get to know someone well enough to want to spend the rest of your life with that person. Yet, they are happy to schmooze you for 6 months and let you get baptized, and then hold you accountable for the rest of your life.
At the age of 14, you've barely had your first crush... and they'll tell you that you can't possibly understand what it really means to be in love. Yet, they consider you to be eligible to make a vow before God. Does that make any sense? Of course not. Even Jesus didn't get baptized until he was 30 years old... more than twice the age that you were when you got baptized. Yet if a child raised as a JW isn't baptized by the time they are legally an adult, the parents (fathers in particular) receive criticism from the elders that they aren't doing their job properly in "inculcating" their children with Jehovah's Laws™.
It's a sad cycle.. the parents get pressure, and then start pressuring the children. If the children don't comply, the dad loses Privileges™ for not training the children properly. The dad loses Privileges™ and loses face in the congregation, so the children end up paying the price with more studying, more service, more meetings... so the dad can try to win back the favor of the elders.
Of course, we both know the body of elders that you were dealing with.... not exactly top drawer material, my dear.