These are basically paper silver and something i personal don't like as i believe you need to hold precious metals to properly own them

I'm on the other side of the fence, here's why:

You don't have to invest in security: You'd have to hold and trade a lot of silver to recuperate the cost of buying decent vault(s) , which also brings the next problem: more silver -> bigger or more vault(s), physical space to put it and other security measures since you will want to protect that stuff the more you have it.

Liquidity and transport: ETC are bought and sold with a few clicks. Physical silver not quite, plus the risk and costs when in transport. Also more silver the more it will cost.

Just my opinion.