Earlier quoted context omitted.
> your brother I lack siblings. > or my brother is innumerate You led with "maybe"; to keep my next sentence's structure from becoming a complete mess, I'll assume that your hypothetical is true. If some random person tells me "my brother is innumerate" ... then why should that information be of any consequence to me, in the absence of further context? EDIT: and by further context I mean further information about you…
The further context is that your brother could be harmed by gambling or lotteries. The information should be of consequence due to human empathy usually associated with family members and hopefully, also other humans in general.
You mean their brother? Presuming so, then my next paragraph applies to this item also.
> other humans in general.
But who? I draw much different conclusions from a physician or a programmer or a chemist or etc, than from a hobo or an organized-criminal or etc.