Did nobody read my message?
“Grounds for annulment, dot dot dot,” draw out the sentence and the thought, “if.”
Look, I try to write in a lively style, but if we have to go all Dick and Jane easy readers, then fine.
Non-consummation is only grounds for annulment if one of the parties complains about it. There is all kinds of stuff about reasonable lengths of time, ages of the married parties, health, blah blah, blah. But that is what it boils down to.
If both parties are happy with non-consummation, nobody can force them to consummate or denigrate or end their marriage.
If there is a complaint by one of the parties, and the other party does not fulfil the marital debt of his or her own accord within a reasonable length of time (everything else being equal, and nothing serious hindering it happening), the marriage can be deemed never to have existed.
If both parties agree, they can consummate at any time. But consummation without consent is of course forbidden.
St. Therese’s parents initially planned to have a Josephite marriage; they were both considered too old for kids by their friends and thought they would just live a sort of religious life. But after fostering a kid for a year or so, and after discussing it with their priest (who thought they were not too old), they mutually decided to consummate the marriage. In middle age, they ended up having more than five kids.
And if you want to know more about the canon law legalities at various periods, there is quite a lot in the history of the crowned heads of Europe.
A marriage that is ratum sed non consummatum is considered sacramental and valid, unless and until somebody complains. It is not indissoluble because it is held together only by consent and goodwill, not by bodily unification.
This is not considered a refusal of children, since every married couple is entitled to not have sex as much as they want, if they mutually consent. Doing so for the purpose of prayer is Biblical; just ask St. Paul.
People physically incapable of having sex are generally not allowed to embark upon a Josephite marriage, however.
And now I have said a lot more on this subject than I ever wished to do.