I'm just saying: if you come up with anecdotes about jolly homosexual five year olds, they can be matched and overtaken by anecdotes of horror and abuse from residential homes. I'm not sure why your anecdotes are allowed and mine aren't.
Particularly this vague, hypothetical possibility of them needing guidance about the sexuality of other people. Being told that these two people looking after you don't like the fact that Uncle Arthur has a boyfriend is NOT worse than the emotional deprivation and abuse that can happen in a children's home. These are BOTH hypothetical possibilities, none is guaranteed to happen, the levels of risk are utterly indeterminable. So we either discuss this anecdotally and hypothetically, or we don't.
Since a great many worse things have happened in children's homes than we could ever want to imagine, then if a couple seem warm-hearted and generous despite this flaw, and more importantly, to fit the bill in EVERY RESPECT despite this flaw, and since only ten per cent of people are gay, and since only a tiny per cent of those people are conscious of their sexuality aged 5-8, I'd take such a couple over a children's home any day. Anything else is actually starting to look irrational to me.
I don't really think I should look at care homes outside the UK when the children with these foster parents won't be placed there.
About a sixth of looked after children are in residential care. So, a one in six chance. It's not exactly vanishingly rare, is it?