When I adopted my two boys I was hoping they would be indoor cats but it became clear that Algie in particular would not be happy as an indoor only cat so now they are allowed a few hours outside but not at night. Algie does play up sometimes wanting to go out at night, but a few firm No's and a bit of distraction or just plain ignoring him and he soon gives up. Previously I have had cats that have had 24/7 access, but between road fatalaties and having to get up at all hours chasing various species of rodents, sometimes several times a night, these two are on curfew.