only few people can devote their time and resources to learn trading and be successful at it.
That's not true, it's not only about a few people but anyone who can devote time, effort, and resources can become a successful trader. The very first and most important thing in trading is knowledge. When you gain knowledge, you tend to understand the market very well, and that wouldn't allow you to make wrong trades and invest your money in useless projects having no potential at all.
Why do they direct newbies to the wrong path when they know it is a very risky way of increasing your bitcoin portfolio. Newbies should not jump into trading in the beginning because it will slow your chance of investing into bitcoin and increasing your bitcoin stash overtime.
Is the money newbies use to make investments or start trading given by the person suggesting things? No, right? So if it's their own money, they don't want to lose it, then they need to do their research before investing it in any coin or project so that they can get some profit instead of losing their money.