Generally speaking, most of this stuff is purchased through civilian stores just off post catering to military needs. No paperwork required to buy, but you’d be better off dead than to get caught wearing awards you didn’t earn. And yes, there are ceremonies and other formal occasions where one needs to wear a dress uniform with all your ribbons and awards on them.
Fellow vet, hoped to be done fighting, but this country is devolving into madness, and I’m prepared to fight for the constitution. I took an oath, as all that served did, to defend this country from all enemies, foreign or domestic, and I took that oath to heart. Hope for the best, prepared for the worst.