The sexual activities that take place on a date depend on several things. Young teenagers who are just dating should probably not do sexual activities until they feel the time is right. In their case, it should not be done until they are older because the girl might get pregnant. Older dating pairs may feel that it is suitable to do sexual activities together when on a date.
It also depends on how well you know the other person. If this is a first date, then going too far in a date may not be a good idea because the intentions and communication may not have been established yet. Therefore, both sides should be in agreement when deciding what to do on a date.