| Disadvantages | f | f% |
| Additional teachers’ obligations | 10 | 20.8 |
| Specific students learning problems | 7 | 14.6 |
| Additional student input in lessons | 4 | 8.3 |
| Loss of identity | 1 | 2.1 |
| Additional work in language customization | 1 | 2.1 |
| There are no disadvantages | 25 | 52.1 |
| Total | 48 | 100.0 |