People that reload like to encourage it but it is not for everyone.
I enjoy reloading, it does not save much on less expensive rounds, and for the additional time it takes if you compared it to how much you get paid professionally per hour you would probably save money buying factory ammo in in a larger number of calibers if you just worked an extra few hours and bought some factory ammo. So it is something that you need to also enjoy to really be a savings.
Reloading can also be dangerous. While it can be done in a perfectly safe manner, being absent minded on a single round can cause catastrophic failure, your gun being damaged or destroyed, and hand or face injuries.
With factory ammunition that is very unlikely.
I would be cautious encouraging a bunch of people you don't know to take up reloading.
It deserves a certain quality of attention, which can become lacking in some people after they load round after round and start to get casual with it and let other things take thier attention during reloading.
As far as positives beyond what has already been mentioned such as cost and tailoring your own rounds:
Reloading still depends on factory produced components. Which means you are not really any more self reliant, and your ability to shoot still depends on purchase of items you are merely assembling (with some measuring, weighing, resizing, trimming, tumbling, inspecting, and otherwize reconditioning brass.) With bullets being the only component some even produce.
However reloading makes you familiar with those components, and for myself has resulted in me thinking even beyond just purchase and towards being capable of making my own as well.
Causing me to think about homemade primers, homemade propellants, and homemade or makeshift 'brass'. I feel fairly confident that even without the ability to buy anything from the factory I could still manage to produce ammunition in certain calibers with even more time invested per round.
Without reloading I would not have arrived at that point.
So reloading is certainly a progression towards better understanding and self reliance of what is necessary to exercise a right that has and can be restricted by governments around the world limiting access to such things.
So even if the day came that I couldn't buy ammunition I feel confident I could still have ammunition.
