Need to hear thoughts of a gran or grandpa

Sometimes it is difficult to be even handed. An older child might get help with driving lessons, a car, university, a wedding and a house deposit, before a younger sibling.
At some point it would appear that the older child has received more than the younger one.
I think most parents would want to help their children, if they can, but perhaps evening out the help, especially monetary, comes later.

Yes its a bit like the Prodigal son isn't it ? I am not sure why your parents need to sell their investment to fund your brother either.
Having children is a choice you made and we have to make sacrifices for them one way and another. Don't let this affect your family relationships but enjoy your children and your independence.

Hi gigi that's a tricky question. We are fair when it comes to helping out our adult children, but one has needed it more than the other in the past (through circumstances beyond control).

I don't understand though, from your OP, if your brother can now get on the property ladder, what that has to do with your parents selling the flat he rents from them. Surely, he buys his own place, and off he goes? Or are they expected to help him buy a place?

Another point to make I think is about choices. For example, if someone chooses to have children, then I'm not sure ageing parents can be expected to help out with the resultant drop in income due to one parent needing to work less...

I personally would never do something for one child without doing it for another but everyone is different and plenty do.
Do they actually know that you are struggling financially? Quite possibly you seem the sensible one who can get on in life and he is the opposite and can't function alone.
I would discuss it with them - finding what is common in families is not really a help.