Marriage is about fairness in a long term relationship with kids. Not being married allows me to abandon my shitty partner at any moment and leave them with meager child support and three kids. After 12 years they would only have the money we agreed on for buying groceries.

I won’t because I love my kids and partner, even though they live out their pathology on my back and refuse to get help. She is doing the work of raising our kids and as far as I’m concerned that entitles her to half the money thats left after all the expenses. She won’t marry which makes giving her those things complicated and not guaranteed, which would be through marriage.