(Numbers are not accurate, but demonstrate the reality).
We don’t have many savings due to a job/ house move that was needed due to covid. We owe (for example) £80 000 over 22 years (did it like this to keep repayments low). If we stick to the plan, we'll pay back £130 000. This means £50 000 worth of interest. Now that I have seen the stark figures, I can’t imagine paying that much interest.
I have savings of £8000 - saved for some work that needs doing and I don’t want to get a loan. Would I be mad to pay off £5000 and then try to save again. I imagine saving £5000 (in case of emergency), then paying this lump off the mortgage. It would mean a limited safety net of savings.