This all kind of depends on what you mean by "young".
Titus 1:5 - 9 has a more detailed description of what an elder should be:
5 I left you on the island of Crete so you could complete our work
there and appoint elders in each town as I instructed you.
6 An elder
must live a blameless life. He must be faithful to his wife, and
his children must be believers who don’t have a reputation for being
wild or rebellious.
7 For an elder must live a blameless life. He
must not be arrogant or quick-tempered; he must not be a heavy
drinker, violent, or dishonest with money.
8 Rather, he must enjoy
having guests in his home, and he must love what is good. He must live
wisely and be just. He must live a devout and disciplined life.
must have a strong belief in the trustworthy message he was taught;
then he will be able to encourage others with wholesome teaching and
show those who oppose it where they are wrong.
As you can see while this description does not explicitly give an age requirement, it gives the expectation that this person is established, and that they have a proven track record of being Godly.