There are a lot of factors to consider if you are able to install a charger circuit, but you can open up many headaches if you insist on running a 50 amp circuit. Especially if you've got limited electric service.
5kW chargers deliver roughly 15 miles of range per hour. So in an 8 hour overnight charge you can expect 100 miles easily.
My personal opinion is that unless you have an extreme commute or a big truck of an EV, 5kW is plenty, 7kW is luxurious, & anything above is probably not needed.