Everyone can invest.
Anyone can, but nobody know what or how to invest their money. The ones who do are no longer whining in forums but making money albeit not everyday but regularly.
They invest in Bitcoin to find ways to make a profit and increase their future wealth. They should be educated about Bitcoin first, and the more they know about Bitcoin, the more they can know that Bitcoin can be a great way to get rich.
Bitcoin is not a way to get rich - get this out of your head. It is a currency that has a speculative market. Getting rich from bitcoin is by trading on that and that is not a cup of tea. Not everyone here coming into bitcoin has been an early adopter in the two digit prices, some of you have bought bitcoin at five digits and hence you need to be careful.
Creating wealth is a bullshit term according to me, the right term is collecting it. Bitcoin will help you because it has advantages over fiat but it will not make anybody rich overnight, for that depends on a lot of factors.