"Matured" means to grow and develop over time, usually referring to a person, an idea, or a process becoming more adult-like or fully developed. Full definition
If you are 55 years old or older and complete a defensive driving course for mature drivers, your car insurance company will likely apply a safe driver discount for up to 3 years. (dmv.org)
The course is designed for mature drivers who wish to up their driving skills. (takedrivinglessons.com)
There are tons of great threads dealing with sexy talk, why it's great to date a cougar, and tons of other topics dealing with mature dating in general. (cougarworld.com)