Marriage has increasingly become something the middle classes do and working classes are less likely to. That’s supported statistically. It is a significantly growing divide.
Therefore, in groups where people tend to get married, marriage is seen as a level of commitment above having a partner. It’s seen as the natural step and that if someone doesn’t do it with their long term partner, perhaps there is a reason for this. However, everyone’s in these groups will also know those in very committed relationships who aren’t married too.
In groups where marriage is much less common these days, above a certain age, and beyond a certain number of years in a relationship, it might be similar, as marriage just isn’t the norm.
In some groups, people refer to someone as their partner after a few weeks. Some people move in together after a couple of weeks. There has been no commitment to the long term, understandably.
A good question, is when does a non-married relationship transition to permanence? Is there a typical length of time? Is it a conscious decision or can it occur without a conversation?
Fir a number of people, typically women, they would like their long term relationship to now have marriage, but their partner is more reluctant. For those women, it really does feel different and matters.