Oh God it never ends! I have one sensible one who we gave a deposit to when he bought house with girlfriend, also paid for all his accommodation up front when he was at university. Then we have "the profligate"
broken relationship with mother of his two children, provided deposits for flats for them, deposit for car, helped them out of numerous financial scrapes, help with costs for children.....and on and on it goes. I have a flat in Surrey, about 30 miles away, we are on the edge of London, he lived in that with a mate for a while, whilst in between relationships, gave them "mates rates" He's got his eye on it for the long term, with me as the soft touch landlady
and possibly I will do that at some stage in the future. However, it has been let successfully since his departure and as he is now living with a new girlfriend, I'm not going to rush to sign him up as a prospective tenant. Although don't know how current relationship will pan out in the long term because he always jumps in too quickly imo. C'est la vie! can't live their lives for them.
I/we would say a big fat no to any help with paying for weddings, bricks and mortar only and help with children if required. They can pay for their own fripperies.