Per an article if Forbes Magazine dated 2/19/2020;
“Culture and tradition play a role in the decision to join the military, but so too does familiarity with uniformed service. As military service becomes rarer with the passing of the Greatest Generation of WWII veterans, as well as the millions who were drafted during the Cold War and Vietnam-era, military service is increasingly concentrated in families and in communities which host large military bases.”
My experience, being from a military family and growing up in a military town, differs greatly from your experience regarding parents and other family members encouraging their children to join the military. However, joining the military does NOT always mean a military career.