Young kids in classic cars...what do you do?

Sorry, I initially went looking for safety seats for children and I’m distracted by the search engine. Anyway, since a place like Simpson (I Think) makes child seats that look and function like the real deal racing seats that adults use and found this and who would have think? This was on the quick;
Simpson Racing HS.CHD.11.SAS.M61 Simpson Hybrid Sport Restraints | Summit Racing