I appreciate what you're saying but it's perfectly legal and relatively simple, you're the main beneficiary and then there's the Trustees, your kids, you have sole power over what happens to everything in the trust up until you 'lose it' or sign power over to a trustee.
Or just do nothing and hope it doesn't come to that.
Well, I get what you’re saying too.....but are you familiar with “deprivation of assets”?
Maybe your kids would be happy with you being in the cheapest Council-funded home, should you become one of the minority who do end up in care. I’m pretty confident ours would want us to be comfortable, using the wealth we earned, rather than just taking a chunk for themselves.
FWIW, we have always tried to help them build their own wealth, helping (in a small way!) fund LISAs, ISAs and pensions as they have got older (& whilst I was still earning): get the power of compounding to work early (& helping educate them financially - something not well taught in schools!).
As I mentioned, easiest and best way to protect some of the house value appears to lie in the simple task of assigning the house as tenants in common versus the more usual joint tenants. Something you can do yourself. A trust is never “a simple thing“: did you write yours?