What I mean by social media trend is seeing a tonne of carbon copy posts of people holding there red and white TSC boxes and then also memes being made about going there to get chicks. It pretty much flooded my feed so that's why I was confused thinking TSC had a monopoly on chicks.
Some of those may be impulse purchases (go in to buy dog food, see chicks, buy chicks.)
Others are probably people who did their research, built a coop, and are now buying the chicks. There can be various reasons for buying at the store instead of directly from a hatchery. The person may want to see the chicks in person before getting them, rather than ordering from a hatchery. The person may be worried about the chicks dying in the mail, and prefer to buy the ones at
TSC (that were sent through the mail, but the customer only sees the one that arrived alive, not any that died on the way.) The person might want just a few chicks, which is not possible with some hatcheries and even the hatcheries that will sell small numbers will add a big surcharge because they have to pack the chicks differently to mail a small number.
The big hatcheries have been around long enough, and buying chicks from them is so easy, that there is not as much market for chicks from local breeders or smaller hatcheries (as compared with how much demand there would be if those big hatcheries did not exist.)
For shipping chicks through the mail, they do best with a certain number of chicks in the box. For many years the standard was 25 per box, although now I'm seeing quite a few hatcheries that will ship a box with 15 chicks. Either way, that many chicks produce enough body heat to keep them all alive and healthy during shipping, at least most of the time. (Bad weather, shipping delays, or poor handling by the Post Office can change that, but chicks arriving alive is much more common than chicks arriving dead.)
To ship smaller numbers of chicks through the mail, the hatcheries need to pack them differently: smaller boxes, insulation, sometimes a heat pack: all of this takes more supplies and a lot more time, so the hatchery usually adds quite a surcharge. It often costs the same amount of money to order 15 chicks or 3 chicks! Buying 3-6 chicks at the local
TSC is quite a bit cheaper, because
TSC was able to get them shipped in large numbers (much smaller per-chick shipping cost.)