Airbag

How much minimum distance should you keep to the airbag? Are there values there? What can happen if I sit too close to the steering wheel? How quickly do the airbags open in the event of an accident? Do the airbags also bring something to the passenger (the seat is not directly in front of the steering wheel, where should it hit in the event of an accident, if the pryctotechnique belt straps act, it is held back anyway from the belt in the seat. talcrash (e.g. in the seats)? You should/must put on the seat belt despite airbag, but in the usa there is NO compulsory seat belt in some states. There are bigger airbags (with more volume)? Do they help in a crash unsealed what? Why does the C8 naturally HINTEN have no side airbags (at the Fiat I can think of, cost reasons). Thanks for your answers mfg franz