If charities didn't have such a bad press I would leave them something.
But I'm afraid none of them really instil any confidence in me, ie. that the donations get to where they should be going. I do realise that there has to be administration/oversight and auditing and so on.
However, some of the offices and buildings they use are amazing and their CEO's and (some) staff earn very good salaries. No problem with a CEO getting a decent salary, but some of the amounts make my toes curl TBH.
I am so sorry to say that, as I do realise many charities are virtuous, but they are nearly all sucked into the PR machine, for which they have to pay dearly.
Anyway leave your money/assets to your children if you want to. Do not be guilt tripped by anyone. Your money, absolutely your circus.