Mostly yes. I use the SNB Bank app to keep track of my sim's money for two main reasons: 1) how much each adult will start out with once they graduate uni/move out from the parents' house and 2) so I can work a extra-retail system for certain items between my households. Once my sim starts earning money as a kid (whether through an afterschool job or some other random source) I start adding it directly to their account. This is their university fund. Depending on how large their fund is, they can either pay for school, take out loans, or their parents may front them the money. The separate accounts are useful since I send several sims from different families together in a graduating class.
The extra-retail system isn't fully fleshed out for me yet, but I use it a couple different ways when a retail shop won't work for story reasons. Right now the main way is to pay my photographer sim when I use him to shoot portraits for other families. Current photographer lives alone so I don't want to keep moving him between households and transferring money between households. I also use the account to transfer money when a sim buys a book from the author directly.
