yes its okay to use , you have small children with you will be fine. i had a incident last week where a man pull into a car park spot that was used for parents with prams . i showed him the sign , he told me to p... off . i said sorry to bother him , he went i rang the parking officers , they came to where he was parked , centre managment put over their speakers he left his lights on , he came back to his car , parking officers ask him wheres his child and pram i havnet got one , nice on the spot fine . i have no problem doing that again .