To be honest, you need to plan ahead for your retirement many years in advance, occupational pensions etc…
I am aware that my Husband and I may need private care as we get older so we plan to downsize our house on retirement to a small two bedroom apartment (possibly in a city centre location) and use any leftover money to help our children if they need it (see the benefits of our help while we are alive and well and ensure that they are ok).
If we need to go into a care home the rent money from the apartment should help fund it along with pensions, in the interim the cost of heating and maintaining the apartment would be less expensive than our house so we should be able to keep saving for private care after retirement. If needed the apartment could be sold.
I hate the idea of my kids struggling one day over an issue like this? and why people when they retire want to hold onto a large expensive to run house!
It would be nice to leave them some money, but there are memories, photos and keepsakes that we have gathered that are much more valuable than cash that they will inherit either way, and we will of course ensure that we help them throughout their lives.
I would also be devastated if my kids were only interested in grabbing as much money from my estate after my death than ensuring that my husband and I have a good quality end of life experience with our our money and assets. I would also be disgusted if they used nefarious means to do it which is potentially fraudulent, and burdens an already stretched and underfunded Social Care system.
To be honest OP seems really heartless to do this!