I have a Ds (20) & a Dd (17). I want to buy a small flat for them to share in a few years. It would cost around £75k. They're both ASD & I want them to have somewhere safe to live independently later & to practice living in well before I might die (I'm 56, healthy but you never know). Can I buy it but put it 'in trust' until Dd is, say, 25 (so around 8 yrs)? Is this only for £1M houses of rich folk?