First and foremost, stop being defensive. This is just an argument, and I respect your viewpoint.
Yes you are absolutely right both sons and daughters have the same duties towards their parents. And yes, you didnt mention that a men should move in with his in laws or vice versa. But you were proposing equality, I am just asking how will it work out? A DIL usually doesnt mind if MIL and FIL live with her (UNLESS THERE ARE PROBLEMS, OF COURSE). But do you think sons in law will be that accommodating of their in laws?
And whats with this whole **‘If we can deal with it when it comes to girls leaving their parents we should deal with it when comes to men leavng them as well’ **BS? Just because they had to swallow that bitter pill, you want to shove one more down their throat ? Its like telling them ‘you let your daughters go, now let your sons go too’. BS.