[vinceguidry]

Not just everyone is skilled enough to make great libraries. There is always going to be an order of magnitude more people interested in using a premade library than are going to be capable of making one themselves. Even if ability wasn't a factor, time often is.

[JohnBooty]

    Even if ability wasn't a factor, time often is.

Right. Not everybody has spare time! Many of us are caring for loved ones, have disabilities, whatever.