What happens on death?

TVAS

Will it all just go into a pot of money and get split between siblings? (Ideally what I would like) Go to a solicitor and get a will done.
You seem to be implying you want all of your money to go to siblings and nothing for partner and children. The will will be contested this is another reason to consult a solicitor.
Your next of kin are your children not your siblings.
Your "partner is your next of kin if you are married, however if she is a financial dependant she has a higher claim on your estate more than your siblings. 
 

stig

It seems to me that this is someone who doesn’t have a partner or children, and so they think their next of kin will be their siblings. Is that right?

Without a will, their assets will pass to parents first and only then to siblings. With a will it will work exactly like any other will, assets and liabilities netted off then any surplus distributed to named beneficiaries. Child, sibling or dogs home, no difference.

Stig 

IAMIAM

stig said:

It seems to me that this is someone who doesn’t have a partner or children, and so they think their next of kin will be their siblings. Is that right?

Without a will, their assets will pass to parents first and only then to siblings. With a will it will work exactly like any other will, assets and liabilities netted off then any surplus distributed to named beneficiaries. Child, sibling or dogs home, no difference.

Stig 

Correct.