Comment by bigstrat2003

No, but the law is not a thing of subtlety and nuance. It is a thing of bright lines. It would be infeasible to have a law that says "children can make adult decisions when their parents think they're ready", so we have to pick a cutoff point which tries to strike a balance between giving too many immature kids power over their lives, and restricting too many mature kids from making decisions with their lives. Some kids will be unfairly held back because they are very mature at 15, some will ruin their lives because they are completely immature at 18. It's imperfect but no perfect solution is available.