The fact your friend is using a no-fee platform to invest in the second-most profitable company in the world paying out a reasonable dividend is problematic? I mean, I guess they could invest in SPY but Apple's been a solid 5-year outperform. Tesla's worth half what it was 6 months ago, so seems like a balance of risky and less-risky assets.
Now Beyond Meat, well, that's a different story haha.
The fact that my friend, a total casual, is investing in Tesla and Apple via Robin Hood has me concerned the market is inflated with dumb money.