For those who wish to learn long-term, bear in mind that you’ll have to find longer-term support if you want to get married earlier and also learn for as long as your friends are learning.
Also, you may be more likely to marry a younger girl who will not have started education for a degree yet, which will necessitate complete support.
In general, I don’t see why having at least a vision of a path toward self-sufficiency shouldn’t be a prerequisite to marriage, but if you have someone ready to shoulder the responsibility, gezunter heit.