Is marriage obsolete?

im 21 and i never had a girlfriend (yet) and i decided at a young age not to get married no matter how intresting or how pretty the woman i will never get married it just seems so old fashioned and what you do after it go on honeymoon and do the same thing you were doing before you got married untill baby #1 arrives and if the worst happens id rather be dumped by a girlfriend the divorced by a wife p.s this is just my opinion