^Im also not the only MUM on MN or in the wider world who is disinclined (or for that matter, unable!) to provide a roof for adult DC. I don't find it harsh, you do, fine. I don't judge your position (although there is certainly room to do so and others might), I just don't share it.
Again, parents and stepparents alike may choose to give financial help to their adult children, elderly parents, or anyone else they feel would benefit from it and that they can afford to do so. Lovely. It does not make them better parents or better human beings than those for whom it is not a practical decision.^
It is not about financial help, it is about housing but even more about home.
18-25year olds are fledging adults, many of whom will really struggle in this economy, under this g'ovt particularly, left to house and support themselves entirely from their own resources.
Young adult children are not the same as 'elderly parents or anyone else who would benefit..'
Parents who provide phased support of various types, including a home, should it be needed (and by that I mean a 'my home is your home' attitude not 'you can come for a short holiday same as great aunt jean' -it doesn't matter if only the sofa is available and they have to buy their own beans on toast because money is so tight) ARE better parents, in fact. Ask any care leaver who has had to suffer the 'parenting' of the state cutting off suddenly at 18.