Normally you are verified once you add a credit card to your paypal account in your country and confirm it.
You can't add a local bank account / debit card in your country. You can only link a credit card.
The option to receive paypal payments is sadly not available in Uganda. You can only send payments for purchases funded by your (confirmed) credit card.
Paypal varies a lot country to country and can only offer the services that the banks / governments of that country allow it to offer. There are quite a few countries unable to receive paypal payments.