in the UK it was commonplace for teenage girls to get pregnant--then they could get a local authority house to live in. in most case the sperm donor was still around--but didnt live with the girl and baby ( ies). this was because housing benefits meant the girl lived rent free--which could well be taken away if the father moved in--and had a job.
in some neighbourhoods its common to see these teenages wandering around pushing prams ( strollers ? ) with tracksuited male youth in tow. terminally unemployable.