What is the obsession with marriage?

Our religion puts way more emphasis on namaz 5times a day n other important issues but who ever prays 5times? conveniently marriage seems to be the biggest issue...i feel religion has became a source of justifying...theres no age limit given in our religion (atleast i dont think) as to when a girl should get married so why early? or why late? dosnt matter if u r 18 or 25 seriously what matters is ur up for it n u hav done all ur homework before marriage!
If a gurl thinks she can till the last day of her marriage live like a princess in her house,wake up late or hasnt even seen where the kitchen is in the house n gets married weather shes 18 or 28 shes in for some trouble!!!!