I was in a similar boat a few years ago. I wanted boer/meat goats, planned to rear a couple for meat, eat them. Then either repeat or breed my own and have a little herd. As well as this, I wanted them to be tame for walks/harness goats? And for my toddler to grow up around other animals. We also have a lot of ground that they could tidy up, 10+ acres.
At the time I couldn't find any boers, then met some local Anglo Nubians and when the breeder said all males are culled at birth I decided I'd get two. Similarly to you - so that I could get used to the species, and all the care, and if I liked them, get more/breeding stock down the line.
I got two disbudded wethers, bottle fed, then one died so replaced with a British toggenburg wether. I take them for walks most days, they are like dogs, great to be around and kids love them :-)
Don't get babies. Mine are were/are super tame which is LOVELY, but they saw me as mum and had issues with being left - essentially they would only eat if I was with them and otherwise starved themselves. They started eating, but after months of being skinny, I recon this is why, aged 2 my Anglo Nubian is stunted :-( Ive no idea why mine ended up with this issue or how I could do anything different next time, so wouldn't get bottle fed kids again.
Don't get the wethers. If you think you might like to breed/milk sometime, why not get females that you might be able to do that with down the line. It doesn't sound like you have masses of space, so id avoid limiting your operation before you start. If you take them on as pets, you can't eat them and you might struggle to sell them on as pets to make room for others.
With all the time and cash that you'll invest over the lifetime of the goats, wait and drive as far as you need to get the ones that best match your criteria.