Legacy spares moving out

If you have city living, you could give the spares enough of the money to buy an apartment, until they can earn enough money on their own to move out to a house.

I usually give anyone moving out of main played family half to all of the cash money depending on money situation at the moment so they can get comfortable home set up

(well unless family hates them then they get none and get to eat dirt in tent)
(or if their spouse they move out with happens to also be extremely rich they probably do not need as much)

but that is because main heir usually gets the house and all objects in it and they usually have way or another to gain quick money from it

+ since we got vault with get famous i usually keep separate fund in one for any sim that I might want to move out later

I give them enough to buy the home of their dreams and decorate it. Even if that's most of what the legacy family has on hand at the moment. The legacy family will continue to earn income much more often than the "spares" since I don't play them very much after they move out. And the legacy family has the lot with the moneymaking garden B)

I give 10% of the total household income to each person that moves out.

I'm sure it's a consequence of playing on long life, but I usually don't have an issue setting up spares in decent houses (sometimes I have to build them because MCCC has filled up all the suitable ones and I don't want to kick a family out.) with a reasonable amount of seed money.

Of course, I could just as easily send them out into the world without money (and will do so if it suits their story, but it usually doesn't) as once I move the spares out, I leave them to the mercies of MCCC and remove them from my played households.