Single or double buggy?!

My second is due in March next year so will also have a 2 year old, just, but we’ve gone double buggy, he’s a very good walker but sometimes doesn’t want to, or we need him to nap. I can imagine seeing a baby in the buggy and him wanting to go in too!
I have however seen mums pushing babies around with a buggyboard attached for the toddler, and they seem to enjoy it.

I got a buggy board for my first when my second was born (18 months apart) and my third is just over 2 years apart from the middle so they walk, sometimes my middle uses a buggy board and my eldest (4 years just walks everywhere)

My son was 18 months when my second was born, also a good Walker however would get tired on longer walks so it’s good to have

Ive gone for a 2nd hand Donkey 3 as Im due when Feb 22 babe is 21 months, shes a good walker and has been since 13 months but still uses her pram. I personally prefer the side by side options and like my babies to face me. And can easily turn it back to single mode whenever needed.
Ive kept my single umbrella stroller for when I/we want to babywear though.

I just feel having a double gived me the security to know both babies are safe/contained and easier to manage moreso when im alone.

My first one was 16m when my second was born, great walker - started at 10months we still went for double buggy it’s handy especially if we are going for longer walks :) we prob will be getting buggy board for Xmas