crypto currency investing, anyone?

I'm not interested in any thing I can't touch, I can touch my rental houses.
When the **** hits the fan, if you're heavy into crypto, you will have nothing!
Yessir, Non tangible assets, to me, ain't real. Unless, well, they’re silly cone... lol. My son home built a computer just to harvest Bitcoin he don't do a thing to it it just runs by itself he makes an extra $900 a month doing that... to me if it is not physically in my hands, or in my possession, or something like that, I just don't wanna do it. And of course it takes money to make money, I've got 10 k in tools and a Lifetime of knowledge in Remodeling, Repairs, and Construction. The influx of foreign labor kind of makes that worthless a lot of times...... and with these things going on at the border I foresee my skill set and tools getting pushed over on into the dumpster somewhere