i'd say that something that comes naturally to children is collaboration. which is important for any economic system. children often don't want to share their toys, but they willingly share information. whenever a kid learns something, often they'll try to show it to other children right after. they could choose to keep it for themselves, but instead they "uplift" the group by sharing what they know. adults eventually develop a tendency to keep information for themselves (and potentially make themselves more "competitive" than the others). but children don't. nowadays they probably won't teach each others anything too important, but in primitive societies this probably was critical to survival and overall productivity. it's foolish to think of a "capitalism" as being only about "competition". no complex enterprise is possible without multiple people working together and supporting each others. it allows for specialization and more efficient use of pooled resources. a group that collaborates will be much more powerful than a group that does not (and will easily conquer/destroy them). what creates wealth ultimately is collaboration. but that's very hard to accomplish at scale. and competition is an important motivator. if people just don't do their fucking jobs right then they're not collaborating very well. corporations won't have any reason to be efficient if they have a captive market. finance won't invest in productive enterprises if there's endless money in speculation bubbles, etc. just relying on the good will of people to collaborate does not work at scale. if creates widespread poverty and misery. but at the same time, competition alone would only give you chaos and social decay.
Canada