I'm not debating "reasons" as to why he's got time-off. I said I find it odd to be angry at a player going to a party on their time-off - please be objective, and don't trail off in random tangents, please.
Yes, he should reserve the right to live his life in his time-off. What's not computing here? Maybe you guys clock-in/go to work on your days off, that's cool - I'm comfortable in saying a substantial number of people don't, and I don't think they should be vilified for it.
What does "just having a summer off and being 4 games into the season" mean in terms of Sancho or any other player being able to live their lives - go to parties, travel when they have time off? What's the permissible threshold? Players train daily, the breaks/gaps between football matches seems to only be getting shorter, more populated schedules - longer games etc. Prem ended May 28th in a World Cup year, and restarted 12th August. Football is a job. If he’s authorised to go on holiday then he should.
If you read a post that says "the way you guys speak about football players has undertones that make me uncomfortable and I just can't get on board with - that's not to say he can't be criticised for not performing on the pitch, and supposedly in training - according to the manager, but when people start posting pictures of players in their personal time with the purpose of rallying up vitriol towards them - I think that's the point a sensible adult would say "eh, we're jumping into weirdo territory here" - and your conclusion is "you're defending him" and bafflement - then I'm afraid I've got nothing else for you, unfortunately.