I’ve never had a problem with them (angled or straight in). The key is backing out slowly and looking and not being distracted by radio, etc.. There is simply no reason for parallel spaces unless there just isn’t enough road right-of-way to accommodate them.
There are some areas here that have nose-in parking. If I have to go there I park somewhere else and walk a block or two. You can not see oncoming traffic through a row of nose-in parked cars. It’s not only those backing out who are in danger, it those traveling down the road.