Naturally dying leaves

Are they dying because of age? Very few but just checking first grow

Looks very good. When I see leaves turning yellow on my plants they are typically the ones on the bottom that hang downwards, I will increase the nutes on the next watering and the plants will green up again. I usually don't pick them, I will just let the plant use them up so they shrivel and fall off on there own. No reason to pull them unless they are in the way of buds. your plant looks really good.

As you are into flowering it's very common to lose some lower leaves and that will continue unless you add more nitrogen which will retard flowering so don't do that. Don't remove the leaves until all yellow as your plant is stealing mobile nutrients from them to support bud growth.

From the looks of your plants they are doing fine. Like most new growers you're fretting more than you need to.