What are you talking about? I wear merino every single day, year-round, and it is absolutely not going to ruin the clothing or your health. My socks, my undershirts, and my boxers are all made of merino wool. It's not as miraculous of a fabric as some people claim, but merino /is/ pretty awesome, and it is not going to in any way damage your health any more than any other fabric you might be exposed to.
What I meant was wearing a t-shirt and shorts in a room at 19c and feeling awesome versus being all dressed up in a merino tight fitting sweater and tight fitting leggings in a cooler room. I see no health benefits there, really, no matter how breathable and natural merino is.
And you would need to wash that wool daily (or rather often) if you were wearing it daily. And by now you probably know that merino is a sensitive fabric, and the more you wash it — the faster it degrades (compared to cotton).
That all adds up. And I don't see it as being practical and making too much sense, that's it.
