Nick Nadel answered this question on Loveawake Indonesia blog January 14, 2018 9:00 PM

I would say six months to a year if his parents are local, 1-2 years if they're not. Any sooner could put unneeded pressure on the relationship; any later shows he doesn't consider you a long-term prospect.

There isn't a hard-and-fast rule with this one. But if it has been more than two years and you haven't at least met one parent, he is probably keeping them from you for some reason. It could be that he thinks his parents are insane and could scare you off. Or it could be that he doesn't want you to get the wrong idea about where the relationship is headed. 

Introducing your significant other to your parents is a pretty big deal, particularly as you get older. Whenever my mom meets one of my sister's boyfriends, she instantly starts planning the wedding. At the very least, she asks when they are going to move in together. Needless to say, my sister doesn't bring a lot of boyfriends home for the holidays. Maybe his parents are more laid-back. Or maybe they will put you in the will within five minutes of meeting you. Either way, this is something every guy takes into consideration. We don't want to scare you off with the whole "meet the parents" thing, and we also don't want to add expectations too soon into the relationship.   

Not meeting his parents after a long time, say more than three years, is probably an indication that something is amiss. Sure, there are exceptions. His parents could live in Australia, while you guys are in Peoria. Perhaps he is estranged from his family, or has a strained relationship that he isn't ready to involve you in. But if you know he talks to his parents and sees them on a regular or semi-regular basis, and you haven't met them, that might be a red flag for his level of commitment. For instance, if you've been together for a long period of time, and he tells you he's going to have lunch with his mom who you've never met and doesn't invite you, that's most likely a bad sign.

Seeing as how it's a new relationship, I wouldn't sweat it. Enjoy your time together and let the relationship progress. Let him decide when he's ready for you to meet mom, dad, creepy Uncle Ernie and his cousin who knits sweaters for her seven cats.