Rembering passwords wouldn't be a problem, if...
Everyone stopped telling people they need an unique complex password for every shitty website they visit that insists an account/login is a necessity.
The people is see in daily life only have room for a few easy recall passwords, therefore they should be used for important sites like those linked to your money and the email accounts you use that allow password resets.
If a site insists on storing personal info or credit card details, log back in after paying and make the data inaccurate.
My reg pass would be pretty easy to crack, go ahead and post something terrible as me, see if I care.