I'm watching the Question Time debate on this. Personally, I think it's bonkers.
When I first married, the Married Tax Allowance still existed. When I made my second mistake , it had been abolished. An extra £50 a month might buy you a meal out together, but I can't see how it "supports marriage". Both divorces would have happened anyway; the tax allowance didn't make any difference to whether we got hitched.
Surely the money should be added to Tax Credits, or benefits, or used in some other way to support poor people - whether or not they are married?
Any better ideas on how £50 of taxpayers' money could improve marriages? Maybe Mumsnet could do a bit of lobbying!