FIRST TIME INVESTOR

Hi all, I know these questions have been asked before, so apologies in advance for any repetition! - Joint brokerage accounts: For long-term investing (10+ years), should my wife and I each open separate brokerage accounts and split our investments 50/50? Would this reduce tax obligations in the future? Are there any downsides to doing this? - DHHF vs. VDHG: These two ETFs seem to come up a lot as beginner-friendly options. I’ve read that VDHG isn’t as tax efficient—does that make DHHF the better choice? Or is it more like choosing between Michael Jordan and LeBron James: both are great, so just pick one? - Dividend reinvestment: I understand DRPs are set up through Computershare or Link Market Services. Once I buy an ETF through Pearler, is it as simple as enabling auto reinvestment? Also, if the dividend is smaller than the cost of an ETF unit, do they issue fractional units, or how does that work? Thanks so much for your advice! 😊