On the flip side of this, if you are worried what will happen to your dog when you pass away and there is no-one to care for him/her I think both the RSPCA and DOGS TRUST do a scheme whereby he/she will be looked after you have gone.
Don't know the details for RSPCA but here is a link to DOGS TRUST in case you or anybody else is interested:
https://www.dogstrust.org.uk/get-involved/membership/