...Needing to put our plants in pots is a small issue and one that I am willing to live with.
Jim, I suspect I am a good bit older than you having passed four score and because I love gardening so much, I have developed a system utilizing old cattle protein tubs to grow many different veggies and plants.
The tubs are somewhat larger than 2x2 and about 25-30 gallons each (they are free to me but you can normally get some from a nearby rancher). To make them efficient and older person friendly, I add drainage holes, then a layer of decayed/rotting wood, then a layer of good rich compost, then a top layer of good garden soil.
This approach offers some "pros" in that it requires far less garden soil which can be expensive for some, offers excellent portability as the bottom two layers significantly reduce the overall weight of each container from about 200 pounds to about 50 or less pounds, offers continuous nutrients to the plants through the decaying wood which also acts to absorb and release water which minimizes watering after you get it established.
Instead of buying lumber and constructing somewhat immobile containers, you can be gardening in these in just minutes using repurposed materials. I've been gardening in them for several years now without any problems thus far. In fact, some selected veggies actually outperform garden planting in these containers. I have spread sheets on all of that.
I have studied this system a good bit and have measured productivity of veggies grown in these containers that I call Hügelkultur containers (HK for short). It is based on centuries old proven technique of using decaying wood as an underlayment in growing veggies. It works for me.
If you are interested in this, you can see all the results of those early experiments in an old thread here which I can't seem to find the link for you right now....maybe later.
I can post photos also if you are interested. Some on here questioned the value of this system in the early days, but I can testify that it is extremely effective for me right now, and without doubt it will become more and more important/critical to me as the years go by. It is interesting also to observe that many people are using Hügelkultur in increasing numbers today.
At any rate, thought you might find it interesting.