そうですね。銀行で株は買えないです。銀行を使いたい場合は、その銀行の関連証券会社に新たに証券口座を作ります。RBCならRBC Direct Investing、CIBCならInvestor's Edge、BMOならBMO InvestorLineなど、一見、同じ銀行に見えますが、BankとBrokerageで性質が違います。
Types of permitted investments
Generally, the types of investments that are permitted in a TFSA are the same as those permitted in a registered retirement savings plan (RRSP). These would include:
cash
mutual funds
securities listed on a designated stock exchange
guaranteed investment certificates
bonds
certain shares of small business corporations