Get a prenup if that's your only issue. Married taxes are better, and being auto beneficiary is also useful (e.g. social security survivors benefits). With the right person insurances and credit score/limit are better. Sometimes just hospital visits require being a relation. Immigration for coming to or going to another country is easier.
Marriage is showing your commitment legally/bureaucratically so that your bond isn't questioned easily both individuals also gain financial benefits from it.
You know there's a story in Indian mythology of a dude needing to kill a demon and asks a sage for help. Sage says use my bones dies and gets crafted into a mace that is then used to successfully kill the demon.
There's a separate story of Vishnu killing a demon and fashioning his bones into a mace. So yeah maces.