Well you are very lucky if this is the first time you've had one of these. Even if you did have an account it'd be a scam/phishing email unless they address you ny your name. The headers will show an address that clearly isn't paypal- although some seem to have a close name -eg payal.com
^ you have to link your paypal account to a bank account or debit/credit card so that you can make payments.
When I first started a paypal account I used a prepaid debit card and that worked no problem. Useful if you don't want to give out bank details.
Paypal uses your card. It's allows you to trust them with your card details instead of every trader you use. When I first used them there was a time limit after ehich they insisted on some validation/confirmation and applied a limit. I know because it stopped me using Paypal for an eBay purchase and as a result I had to use a cheque and had my money stolen. But I don't know if they still do that idiotic dodgy practice, but 2 years from opening an account seems unlikely to me.