Eric

1. To show clash between classes

1.1. Feels he can treat Eva as he wishes

1.2. Compare with 'ideal son' Gerald

1.3. Problem 3

2. To explore men's attitudes towards women

2.1. Comparison with Gerald

2.2. Supported by comments from Birling

2.3. Eva's dignified responses make worse

3. To show disaffected youth

3.1. Awkward and miserable at start - language

3.2. Sarcasm / irony from outset

3.3. Drinking

4. To show gap between old and young

4.1. Friction from start with Birling

4.2. Eric's growth compared with Birling's between start and end

4.3. Uniting with Sheila