Digging down into these numbers is really quite alarming.
Of the 59% who support assisted dying both in principle and in practice:
74% think it should be legal for non-terminal conditions
24% think it should be legal for reasons of mental health
27% think it should be legal for children
15% think it should be legal for any reason the patient wants
75% think it should be legal for people who are no longer mentally competent, based on their previously expressed wishes
Only 50% think it is necessary to involve a high court judge
Only 33% think it should be a requirement that the fatal substance is self-administered
41% think it is fairly or very likely that eligibility will be expanded beyond just terminal illness
32% think the initial safeguards are likely to be loosened
25% think it is likely that significant numbers of vulnerable people will be pressured into applying for assisted dying by people who stand to benefit from their death
46% think it is likely that significant numbers of vulnerable people will decide to apply for assisted dying primarily because they feel that they have become a burden to others
23% think that the availability and quality of palliative care will become worse
36% think it is likely that society will come to expect that some people should be opting for assisted dying rather than palliative care
Yet they still support it in both principle and practice! It's clear to see there will be pressure to expand the law and weaken the safeguards, regardless of the effects on significant numbers of vulnerable people.