Destiny has always progressed towards being an LFG, or matchmaking type game. Limiting it to solo-ability will limit the amount of content that can be released by Bungie. I used to and still do have that same complaint. It can be hard to get groups together. Chances are you are under level for the Seraph tower event anyways since its the first week so Bungie will just ignore that complaint. Public events have always been meant for at least two people unless you are generally decent at pve with skill and knowledge (which it does sound like you are a good player) I feel your annoyance of being a full-time dad and full-time job, but you have to be realistic with the amount of time Destiny 2 requires and the amount of time you can dedicate away from your work and family. Join a good clan and make some friends to help you when you are on is all I can recommend.