Everyone was a newbie once and in the early days using a wallet was a bit harder, because they were not deterministic, so you had to make sure that you have the file backed up. Now there are mnemonic seeds that make managing them easier, there are hardware wallets for those who are allergic to software. The only excuse to invest into Bitcoin via proxy is being  70+ old and incapable of learning new things. Otherwise there's no good reason to invite a middleman where it's not needed and make your investment less secure and less profitable due to extra fees.