In Act I, scene ii, Lord Capulet tells Paris that Juliet is only fourteen and he would prefer to wait two more summers, or at least until she is sixteen, to start thinking she is ready to consider marriage. He believes that girls who marry so young grow up too soon. However, he tells Paris to go ahead and charm her and make her love him. His permission is only part of Juliet's decision, and if she agrees to marry him, he will give them his blessing.
Act I, Scene ii, 7-11
" My child is yet a stranger in the world.
She hath not seen the change of fourteen years.
Let two more summers wither in their pride
Ere we may think her ripe to be a bride."
Act I, Scene ii, 13-15
And too soon marred are those so early made.
Earth hath swallowed all my hopes but she.
She's the hopeful lady of my earth.
But woo her, gentle Paris, get her heart.
My will to her consent is but a part.
An she agreed within her scope of choice,
Lies my consent and fair according voice.