That way you don't force her to change her life, yet still make her aware of the concerns.
Several answers already, but I want to address a couple of your concerns.
Even if she does not work as a married woman, divorce or widowhood is not a remote possibility, and if she has no marketable skills, she will find herself falling upon difficult times.
If they don't want to wait, then ask the husband to carry ample life insurance should the worst happen.
Since then almost 4 years past and we live together in another city and we are both happy and in love.
I get myself sick with worry in regards to my kids.You are worried about your daughter missing opportunities (travelling, studies).I started dating my wife when she was barely 17, and I was 28. He owns his own successful business although he still lives with parents.I know its only 8 years difference but it's the difference between him being at an age where he must be thinking about starting a family, marriage, etc and her starting out in life. Do I let them get on with it or should I try to explain my above concerns at the risk of pushing them together?