My dogs are older, and I was planning on waiting a little further out (like 2-5 more years from right now. Probably actually 2-3 years as my oldest rn is 12 and my youngest is 10. time moves way too fast :'( ), but I don't want to wait too long to get a younger dog because it's easier for a new dog to settle in and learn with other dogs around. It's also estimated to be a little bigger of a dog as I only plan on having one or two in the 15 year future and I plan on having it more trained than my little 7-10 pounders that I have now.. And another factor to consider is the age difference... I don't want to wait until my dogs are grumps. They still do well with other dogs, and seem to be comfortable most days, still do zoomies, but really young pups can be pretty active.
After the scare I had earlier this year on my older dogs, it makes me even more uneasy on how I will do when the bridge comes since they are all close in age.
Fyi I only have 3 dogs each a yr apart and got them years ago. Not 10 dogs or whatever.