Can you Listen to Vinyl Casually??

Yes, me too, but the reason is simply that vinyl requires frequent care. Not only to flip the LP but also to clear any debris on the stylus which often becomes audible half way through a side.

Downunder...Sorry but that doesn't work. I live in a 200+ year old house in rural New England. To make things worse, at this time of year pollen is heavy in the air.

I never have a problem with CDs or DVDs. To my great surprise I even used a CD player in the room where I was doing a huge carpentry project, with sawdust level so high that it was hard to breathe, and no problem.

In my "real" system, which lives in a slightly better environment, I never, repeat never, have a problem with CDs. This for several decades of use. I never clean CDs (if it ain't broke don't fix it) although I do handle them with the same care as LPs so there are no fingerprints on them. So many people report problems with CDs that I really suspect that frequent cleaning may actually cause the problem. I know this is true of Lab optical devices, which you never clean except for brushing away any dust with a soft brush, and that every couple of years.