Ironically when I visualize this, it reflects how
someone of our age group who would instantly draw photographs from our wallets to show our grandchildren.
Yet would this be the same for your children and their generation ? I'm guessing they'd be more prone to simply whipping out their cellphone to display a multitude of digitized images in an instant. Keeping in mind the median age of our particular society is around 39 years.
Though one thing I completely agree upon. That seeking a retail outlet that allows one to print their digital pictures is the only cost-effective method available, unless one has money to burn when printing them on an inkjet printer. Something I learned from my own brother, who once worked in Walmart's photographic department.
Not to mention that IMO getting an inkjet printer to work optimally is often beyond the ability of the average computer user, or simply just too exasperating for those without ample amounts of patience. Reminds me of how my cousin simply gave her color printer to me, having given up on trying to learn all the things required to deliver quality photographs.
Polaroid cameras still have some value in terms of capturing spontaneous moments. That much is true. However the value of that must inevitably be compared to the value of the cost and availability of film, and whether or not you are talking about a real Polaroid camera, or a cheap and inferior knock-off version.
In essence it all boils down the competition between the cellphone industry and personal computing printers. Both with their unique ways of perpetually robbing consumers of their hard-earned money as opposed to (heaven forbid) merely supplying perceived demand. With no apparent challengers in the market to offer considerably more product for less money. Reminding us all that it's not about who "builds a better mousetrap", but rather those who market the mousetrap more effectively.