We sell tours and activities, and often price for child is different from adult price. It looks similar to this

Currently to achieve needed functionality we are creating 2 simple products for each product (productX-adult, productX-child) and put them in main bundle product (productX)

I am wondering is there a better way to do it?

We will need to add Senior option to some products in near future, so it will be 3 QTY selectors and each will have different price:

So with our current set-up we will have to create 3 simple products(productY-adult, productY-child, productY-senior) and 1 main bundle(productY) for each product.

What’s the better way to do this?