Limited knowledge over this surrogacy of a thing is what makes people think negative of it. If only people understand what surrogacy entails, the number of barrenness in our society will reduce, still u have ur own child bearing ur blood and gene. The only concern is ensuring that all documents is well documented to avoid stories at the end. U know outsiders might deceive the surrogate right? So legal back up prior to establishing pregnancy and couples being on the same page is vital.