Do you have a core portfolio whereby there's gold and bonds?

You have to see what's the purpose of the gold and bond. For most people who have amassed a huge capital in their working years (eg a 45 year old with 500k savings) and you want to let it grow decently without taking too much downside. These kind of person may want to include some bond and gold to hedge against the systemic risk of the market since gold and bond are safe haven assets (negative beta) which means the returns are negatively correlated to the stock market.

But you must understand that gold and bonds are depreciating assets while stocks appreciate over time due to the underlying business. If you are sure of what you are doing and the inherent risk you are subjected to by investing in stocks (equities), i dont see a point in gold or bond as they weigh down returns over the long run. So it depends on you. Whats your goal, your retirement age etc. Best to have it planned out by doing so with a financial advisor. If you need any help, do let me know!

No, gold is meant for hedging and bonds honestly the returns are subpar, it's more to reduce the volatiltiy.

and for reits, to get a decent passive income, you need a huge capital. so if i were u, i'll go all in for syfe100 to get more growth first, think about passive later.