Rant: Security Check Points Everywhere...is it really necessary?

I am becoming agitated with these "security" checkpoints in almost every single place you have to shop: supermarket, gas station, clothing store, pharmacy...

I hope I'm not the only person who feels this way, it's starting to feel excessive and I can't help but roll my eyes when the "security" needs to check my brown paper bag filled with probably 4 items it just feels invasive at this point. Every single stop?

My gosh, I just stepped from the cashier can I go about my day?!