But it’s important to remember that they do still need you now and this is a normal development phase of the teen years.
There are also things you can do to make dating easier for both of you.
The end of adolescence and the beginning of adulthood varies by country and by function.
Furthermore, even within a single nation state or culture there can be different ages at which an individual is considered (chronologically and legally) mature enough for society to entrust them with certain privileges and responsibilities.
Talk to your teen about what a good relationship is.