I think that they do have a problem, yes.
I've seen it said that because modern day sportsmen and women generally don't drink when they're playing or training, when they're let off the lease, they can't handle alcohol in any quantity. Whether this is true, I don't know, but I do think that there's nothing wrong with a few pints after a match to help with the team bonding aspect.
I don't think that social media helps either. There was a time when teams could drink all night and no-one would say a thing about it, provided that they didn't frighten the horses and did their job on the next day. Now, though, there's mobile phones everywhere recording every step, and what's worse, the players themselves often record their own misdemeanours, which doesn't make sense to me at all!
There might also be an element of "they can't do anything to me if I misbehave on tour", but where they get that from, I don't know, as it's been disproved over the last few years. Ben Stokes was sent home from a tour a few years ago, wasn't he?
It's very worrying .... and I don't have a solution to it.