I agree with you. Military conscription is shit, but mandatory community service for young people on the cusp of adulthood could be very beneficial for a society. Particularly if it involves regular interactions with older members of the community (something Western countries lack due to households typically being limited to immediate family). Young people in developed Western nations are more disillusioned, detached and depressed than ever while some older people are really struggling to keep up with the pace at which life and technology is changing. Getting both groups together in their local communities could potentially build some important life skills and confidence for younger people while helping older people to feel included and relevant. I’m not saying a Tory government would be able to implement this effectively, but I can get onboard with the general idea.