I see were your coming from but as a solo player too I have to disagree a little. It take seconds to set up a LFG post, you dont have to socialise or build a friendship,you literally just want numbers in the lobby, lots of guardians will join even if you specify you dont have a mic (dont want to talk) or just want to quickly compete a pinnacle activity. So its crap that you dont get to enjoy the banter and build some sort of rapport with people, but theres always a way to find people. The only thing you'll really struggle with is Raids, but then as myself the same as you, a full time dad, full time job you probably wouldn't have time to Raid anyways.