Dropshipping questions

Hi all. I'm planning to start a shopify website and dropship from aliexpress and i have a couple questions:
1. Is it better to create a site with general products or just focusing on one niche?
2. Will I get into any issues if I update my paypal account to business?

I would highly recommen you to focus on 1 niche. It is much easier to promote (and the rule of marketing - tha narrower the better)

1 niche baby!