It depends on the situation and who says it.
If a man says this with his partner, there are two main reasons.
One is the personality of the person, he is not ready to get married, or the person is not willing to be responsible. Generally, people who are not responsible for their feelings will often say to their partners that they are okay with what they encounter, or that we will see it when the time comes.
Generally responsible men, when their relationship reaches a stage, they will make a plan for the next step or for a long-term life, relatively speaking, some irresponsible men in life always look like they are at ease, the most important thing is how extraordinary these people seem to be.
The other is that the man's feelings for you are not so high.
You may not have too much status with him, or the other party does not like you, it is just a Xi.
When a person doesn't care too much about the people around them, they do things relatively casually, rarely study plans, and they don't even bother to think about it when they talk to you.
If you look closely at those partners around you.
If a man really likes a woman, every look in their eyes contains love. They will make all kinds of preparations for the words of the person they like, and they will work hard for a woman's dream, not to mention their future life, and they will plan early.
So when a man, especially the one you are with, has a casual attitude towards some of your things or your future life, I suggest you think about it, it is very likely that this person does not want to take responsibility or he does not like to love you.
If so, it would be better to leave early.