Folders make more sense but I doubt that he will tell people 20 years down the line that he got this mili from his dad. No criticism on the mili, I have one and I love it but it is designed like a functional tool, no more no less.
I would suggest a custom or semi custom between 3-4 inches fixed blade, thin metal stock, check out the knife maker exchange. Some seriously good deals of good looking knives that will last you a lifetime like Koster, Koyote, NWA, Laconico among many others. Prices are quite civil too, in some cases a lot more affordable than Busse kin knives that you mentioned, and they usually come with a sheath.