I did consider taking a rough average, as you say, it’s not rocket science. But also gives no indication of the individuals’ use so what’s the point in the exercise?
I did not say it’s too small don’t bother doing anything about it, I was arguing that it’s too small to sit there and try and calculate. As I said in my first post, just give what you can/want. Why calculate something that is a fraction of a dollar or pound? There is no purpose to that other than for a ‘feel good factor’, just do something and not bother with the superfluous calculations.
I would also argue that sometimes doing small things is not helpful, and is perhaps negative when it consumes time, effort and resources. We only have so much effort we are willing to give to things, wasting it on tiny things that make no detectable difference can detract from the effort we will put into larger things. I’ve seen many people fly half way around the world for a holiday, then later smugly post on social media that they are using a biodegradable paper straw. The small things do clearly take attention away sometimes (hence my reference to procrastination in the second post).
And finally, what was rubbish? We cannot calculate it, it is tiny and it may detract attention. You may disagree, I would indeed welcome discussion, but to sweepingly state everything is rubbish with no reasoning is a bit playground.