@supersop60 my parents did what you’re proposing to do, on the advice of a solicitor. I was always very nervous about it but they were cash-poor and their sole asset was their house and they desperately wanted to leave it to me and my DSis.
We lost DM, and DF carried on living in the house. In the end he never went into care but after we lost him too, we had an extremely stressful time unwinding the trust, on the advice of a different and switched on solicitor, not least because a rule was shortly to come in imposing a 10-year charge on discretionary trusts. This was all very difficult to cope with emotionally in addition to sorting out probate and mourning a parent.
But as the link posted by CandidHedgehog does note, the 10-year charge is now in place. Some info here:
What is the 10-Year Charge?
A periodic tax, the 10-Year Charge, applies to the trust’s assets every ten years.
It applies to discretionary trusts and some others, aiming to tax the growth in value of the trust assets over time. This charge ensures that assets held in trusts contribute to the tax system, preventing indefinite tax avoidance through the sheltering of assets within a trust.
How is the 10-Year Charge calculated?
The calculation of the 10-Year Charge for discretionary trusts, classified as ‘relevant property’ trusts, requires evaluating the total trust assets against the nil-rate band and applying a 6% tax rate on any excess value. This rate is calculated as 30% of the lifetime 20% rate.
If the trust’s assets do not exceed the nil-rate band, no charge is due. However, professional assistance is often required for this complex calculation and reporting to HMRC.
As you'd imagine, my parents' property had appreciated a considerable amount in the time since the original trust had been created, so you need to bear this aspect in mind if it’s likely to apply to you.