In essence, everyone must have a future life plan, just like a house where there are still many disadvantaged people who don't have a home, so they have to save to make it happen. but it would be better if they invest, so it will be more helpful to ease the problem of financing. and to manage it we must have good financial management
Yes, it could make a person's life easier by investing but what if he/she doesn't know how investing works and gets scammed?. We don't risk what we only have left. It isn't worth a try if you are having a financial problem especially if you're poor. I mean it could be good for you if you know how investing works and stuff.
Either way, Fatunad is right. We can't just simply buy what we have in mind. Even if it is already planned ahead of time, it would still take a long time to achieve what you want by saving especially such things like house and car. Buying immediately the things that have in mind only works for rich people.