Terminally Ill Adults (End of Life) Bill

Lord Winston Excerpts

Friday 5th December 2025 Lords Chamber

[Lord Winston (Lab)]

My Lords, I suggest that the noble Baroness, meaning absolutely well in a clearly very emotional area, has forgotten the real science. She is not a neuroscientist; indeed, I do not think that the commissioner is a neuroscientist. The greatest expert in the United Kingdom on teenage neuroscience is almost unquestionably Sarah-Jayne Blakemore, who works partly in London, partly in Cambridge and of course has been working extensively at UCL for a long time. She has studied teenagers in great detail, and it is very clear from her work on teenagers making decisions that they can make decisions in the right environment and in the right circumstances. I think one has to be very, very careful about making assertions about teenagers. There are many people well over the age of 25 who cannot make these decisions either. I think we have to be quite clear that we may need to take this sort of thing into consideration, but I do not think it is necessarily relevant to this amendment.

[Baroness Stroud (Con)]

My Lords, I want to speak in support of the noble Baroness, Lady Berger. I will limit my remarks because some of them have already been made by previous speakers. I think the reality is that maturity is a scale and choosing to proceed with assisted dying at the age of 18 poses difficult questions, which we must grapple with, about the neurological maturity required for true, settled and informed consent on a matter of such gravity, and not just particular circumstances. I intend to speak in a subsequent group to Amendment 22 in the name of the noble Baroness, Lady Grey-Thompson, but some of the points I will make then are also relevant to this group.

I note that research undertaken by the Sentencing Council in 2024, which focused on aggravating and mitigating factors in sentencing guidelines, has this to say about age and maturity:

“Age and/or lack of maturity can affect … the offender’s responsibility for the offence and … the effect of the sentence on the offender. Either or both of these considerations may justify a reduction in the sentence”.


The report goes on to note:

“In particular young adults (typically aged 18-25) are still developing neurologically and consequently may be less able to: … evaluate the consequences of their actions … limit impulsivity … limit risk-taking … Young adults are likely to be susceptible to peer pressure and are more likely to take risks or behave impulsively when in company with their peers”.


I do not want to cross over into debate on the subsequent group, but this seems highly relevant to our deliberations on the appropriate age for assisted dying. Of course, age and maturity are mitigating factors only, and therefore discretionary, but it seems extraordinary to me that the principle of maturity is one which is accepted in a legal context, and there remain calls for dedicated sentencing guidelines for 18 to 25 year-olds in recognition of this, yet the Bill as drafted does not seem adequately to account for this in a similar manner with regard to the permanent decision to end one’s own life. I would be grateful if the noble and learned Lord, Lord Falconer, could comment on this when he responds to the debate.

The autonomy on which the Bill is purportedly built must be grounded in safeguards commensurate with the irreversible nature of the proposed act. With regards to the age of eligibility, I do not believe the Bill as drafted meets this standard. For these reasons and more, I support the amendments in the names of the noble Baronesses, Lady Berger and Lady Lawlor, as well as those in the name of the noble Baroness, Lady Goudie, and the noble Lord, Lord Moylan.

--- Later in debate ---

[Baroness Finlay of Llandaff (CB)]

The issue with the Mental Capacity Act is that each assessment must be done individually. It relates to the decision that is to be made, the size of the decision, the time and the personal characteristics. There is no absolute. If we are talking about safety in relation to the Bill and avoiding abuse, I am simply trying to suggest that one way forward may be to ensure that the assessment of young people’s eligibility is particularly thorough. That may mean having different criteria and looking at whether they have pain or suffering.

[Lord Winston (Lab)]

I wonder whether the noble Baroness might be kind enough to clarify. She is, after all, a hugely respected individual in the field, of which she is such an expert—I do not doubt that for a moment. Sarah-Jayne Blakemore, a fellow of the Royal Society, has been spending her time looking at peer pressure. That is what her publications have largely been about. Is the noble Baroness really suggesting that a young person of, say, 18, dying of a horrible and painful cancer, would be subject to peer pressure? They might be subject to pressure from doctors but I doubt that they would be subject to peer pressure.

[Baroness Finlay of Llandaff (CB)]

I was simply relating what I found when I was in the Netherlands relating to peer pressure on young people because of the normalisation of euthanasia across that society.