It sounds as if you groom-to-be has some good old fashioned values. Time was when a woman DID say home to raise kids and did so quite well. Very few had carriers.
Nowadays, however, that is still a good idea but it is tougher to make it on one salary. I don't think being a server in a restaurant is too much for such a young lady as yourself. If you future soul mate with whom you will be sharing not JUST love, by LIFE, makes enough to supply for the two of you and beyond, I believe you should respect his wishes.
What you need to do in preparation for your future (60 years or so), is to sit down with him and figure out how much you will need to live on and make out a budget. He may find it will be tougher than you think. Remember, it took your grandparents YEARS to accumulate what they now have. The last 25 young people want everything NOW!
Live within your means! That is the advice my mom gave me before I married. We accumulated things gradually beginning with USED everything, just to start out and in time, we were able to better our lives.
She always managed our money well, I never had to worry about bills. We shared everything to the last penny.
I wish the two of you well in your lives together as you share hopes, dreams and hearts as you two become ONE; TOGETHER!😀❤💕