Maybe it's maturity in the sense of relationships.

An immature relationship might be based on selfish interests, compounded with power struggles, boundary issues, jealousy, spying, and a little rage and stockholm syndrome thrown in for fun.

A mature relationship is based on trust and mutual respect. It does not concern itself with knowing every detail or trepidation regarding other suitors. The relationship is there because it is valued and there are willing participants.

Now... internet connected devices.