Should I get a dog?

I'm looking to get a standard poodle. Currently live in an 850 sqft apartment. No backyard, but I am already an outdoorsy person and go outside a lot. I WFH and have a 5 yr old as well.

I've been thinking about getting a dog all year and haven't fully acted on it because of financial reasons. It's not that I don't think I can afford an animal, I don't know what to expect with owning an animal since I don't have one and don't know anyone who owns one. I get there is emergencies that are unpredictable, but food, toys, routine visits, and other necessary things a dog needs and not knowing how much that all costs is worrying me. Any insights would be helpful! If anyone feels a standard poodle wouldn't be right for me, I'm open to other breed recommendations!